ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon-13-phosphorus-31 cross polarization between isolated spin pairs in organophosphorus substances: intramolecular structure and internuclear distance determinations in spinning solidsEdward W. Hagaman, Patience C. Ho, Lloyd L. Brown, Fred M. Schell, and Madge C. WoodyCite this: J. Am. Chem. Soc. 1990, 112, 21, 7445–7450Publication Date (Print):October 1, 1990Publication History Published online1 May 2002Published inissue 1 October 1990https://pubs.acs.org/doi/10.1021/ja00177a001https://doi.org/10.1021/ja00177a001research-articleACS PublicationsRequest reuse permissionsArticle Views167Altmetric-Citations15LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Solid-state 13C n.m.r. (CP/MAS-13C n.m.r.) spectroscopy provides a direct method for estimating potential oil yields of oil shale formations. Relative aliphatic resonance areas correlate linearly with oil yield and provide a method for oil yield estimation that obviates the need to determine weight per cent organic carbon for each specimen. This direct measurement is performed using an internal area standard, the carbonyl resonance of N-(2-13C-propanonyl)-N,N,N-trimethylammonium chloride, to monitor spectrometer sensitivity. Oil shale samples obtained as a function of depth at a site in the Mahogany Zone of the Green River Formation show a near-constant aliphatic carbon fraction, fal ≡ (1−fa), and a twofold, nonlinear variation in oil yield over the vertical dimension of the sampling. Aliphatic carbon resonance band shape changes among these samples are interpreted qualitatively as reflecting a two component mixture composed of the condensed alicyclic structures which link together to form the kerogen matrix and an n.m.r.-distinct but not necessarily chemically distinct contribution from normal-long chain hydrocarbon residues.

AbstractBenzoylierung des Piperidonketals (I) liefert das Benzamid (III), das in Nachbarstellung zur Ketal‐Gruppierung selektiv zu (IV) bromiert werden kann.

Chemischer InformationsdienstVolume 8, Issue 3 Physical Organic Chemistry ChemInform Abstract: VOACANGA ALKALOIDS. 16. CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURRING SUBSTANCES. 43. CARBON-13 NUCLEAR MAGNETIC RESONANCE ANALYSIS OF BIS-INDOLINE ALKALOIDS OF TWO VOACANGA SPECIES I. ROLLAND, I. ROLLANDSearch for more papers by this authorN. KUNESCH, N. KUNESCHSearch for more papers by this authorJ. POISSON, J. POISSONSearch for more papers by this authorE. W. HAGAMAN, E. W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorE. WENKERT, E. WENKERTSearch for more papers by this author I. ROLLAND, I. ROLLANDSearch for more papers by this authorN. KUNESCH, N. KUNESCHSearch for more papers by this authorJ. POISSON, J. POISSONSearch for more papers by this authorE. W. HAGAMAN, E. W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorE. WENKERT, E. WENKERTSearch for more papers by this author First published: January 18, 1977 https://doi.org/10.1002/chin.197703059AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume8, Issue3January 18, 1977 RelatedInformation

Chemischer InformationsdienstVolume 6, Issue 14 Physical Organic Chemistry ChemInform Abstract: CARBON-13 MAGNETIC RESONANCE, UPFIELD SHIFTS CAUSED BY NITROGEN, OXYGEN, AND FLUORINE ATOMS LOCATED AT THE GAMMA POSITION AND ANTI-PERIPLANAR TO THE NUCLEUS OBSERVED ERNEST L. ELIEL, ERNEST L. ELIELSearch for more papers by this authorWILLIAM F. BAILEY, WILLIAM F. BAILEYSearch for more papers by this authorLAURENCE D. KOPP, LAURENCE D. KOPPSearch for more papers by this authorRODNEY L. WILLER, RODNEY L. WILLERSearch for more papers by this authorDAVID M. GRANT, DAVID M. GRANTSearch for more papers by this authorRICHARD BERTRAND, RICHARD BERTRANDSearch for more papers by this authorKENNER A. CHRISTENSEN, KENNER A. CHRISTENSENSearch for more papers by this authorDON K. DALLING, DON K. DALLINGSearch for more papers by this authorMICHAEL W. DUCH, MICHAEL W. DUCHSearch for more papers by this authorERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorFRED M. SCHELL, FRED M. SCHELLSearch for more papers by this authorDAVID W. COCHRAN, DAVID W. COCHRANSearch for more papers by this author ERNEST L. ELIEL, ERNEST L. ELIELSearch for more papers by this authorWILLIAM F. BAILEY, WILLIAM F. BAILEYSearch for more papers by this authorLAURENCE D. KOPP, LAURENCE D. KOPPSearch for more papers by this authorRODNEY L. WILLER, RODNEY L. WILLERSearch for more papers by this authorDAVID M. GRANT, DAVID M. GRANTSearch for more papers by this authorRICHARD BERTRAND, RICHARD BERTRANDSearch for more papers by this authorKENNER A. CHRISTENSEN, KENNER A. CHRISTENSENSearch for more papers by this authorDON K. DALLING, DON K. DALLINGSearch for more papers by this authorMICHAEL W. DUCH, MICHAEL W. DUCHSearch for more papers by this authorERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorFRED M. SCHELL, FRED M. SCHELLSearch for more papers by this authorDAVID W. COCHRAN, DAVID W. COCHRANSearch for more papers by this author First published: April 8, 1975 https://doi.org/10.1002/chin.197514047Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume6, Issue14April 8, 1975 RelatedInformation

Chemischer InformationsdienstVolume 6, Issue 52 Natural Products ChemInform Abstract: CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURING SUBSTANCES PART 33, THE OCHROLIFUANINES AND EMETINE M. C. KOCH, M. C. KOCHSearch for more papers by this authorM. M. PLAT, M. M. PLATSearch for more papers by this authorN. PREAUX, N. PREAUXSearch for more papers by this authorH. E. GOTTLIEB, H. E. GOTTLIEBSearch for more papers by this authorE. W. HAGAMAN, E. W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorE. WENKERT, E. WENKERTSearch for more papers by this author M. C. KOCH, M. C. KOCHSearch for more papers by this authorM. M. PLAT, M. M. PLATSearch for more papers by this authorN. PREAUX, N. PREAUXSearch for more papers by this authorH. E. GOTTLIEB, H. E. GOTTLIEBSearch for more papers by this authorE. W. HAGAMAN, E. W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorE. WENKERT, E. WENKERTSearch for more papers by this author First published: December 30, 1975 https://doi.org/10.1002/chin.197552375Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume6, Issue52December 30, 1975 RelatedInformation

Chemischer InformationsdienstVolume 6, Issue 52 Natural Products ChemInform Abstract: CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURING SUBSTANCES PART 34, MONOMERIC QUINOLINIC MELODINUS ALKALOIDS M. DAUDON, M. DAUDONSearch for more papers by this authorM. MEHRI, M. MEHRISearch for more papers by this authorM. M. PLAT, M. M. PLATSearch for more papers by this authorE. W. HAGAMAN, E. W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorE. WENKERT, E. WENKERTSearch for more papers by this author M. DAUDON, M. DAUDONSearch for more papers by this authorM. MEHRI, M. MEHRISearch for more papers by this authorM. M. PLAT, M. M. PLATSearch for more papers by this authorE. W. HAGAMAN, E. W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorE. WENKERT, E. WENKERTSearch for more papers by this author First published: December 30, 1975 https://doi.org/10.1002/chin.197552376Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume6, Issue52December 30, 1975 RelatedInformation

AbstractCyclisierung des aus Nicotinsäurenitril erhältlichen Piperideins (I) liefert die isomeren Chinolizidinderivate (IIa)‐, (IIb) und (IIc), die zu den Aminen (IIIa)‐(IIIc) reduziert werden.

Chemischer InformationsdienstVolume 5, Issue 5 Natural Products ChemInform Abstract: VINCA ALKALOIDS PART 31, THE STRUCTURE OF VINCARODINE NORBERT NEUSS, NORBERT NEUSSSearch for more papers by this authorHAROLD E. BOAZ, HAROLD E. BOAZSearch for more papers by this authorJOHN L. OCCOLOWITZ, JOHN L. OCCOLOWITZSearch for more papers by this authorERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorPIERRE POTIER, PIERRE POTIERSearch for more papers by this authorCHRISTIANE KAN, CHRISTIANE KANSearch for more papers by this authorM. M. PLAT, M. M. PLATSearch for more papers by this authorM. PLAT, M. PLATSearch for more papers by this author NORBERT NEUSS, NORBERT NEUSSSearch for more papers by this authorHAROLD E. BOAZ, HAROLD E. BOAZSearch for more papers by this authorJOHN L. OCCOLOWITZ, JOHN L. OCCOLOWITZSearch for more papers by this authorERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorPIERRE POTIER, PIERRE POTIERSearch for more papers by this authorCHRISTIANE KAN, CHRISTIANE KANSearch for more papers by this authorM. M. PLAT, M. M. PLATSearch for more papers by this authorM. PLAT, M. PLATSearch for more papers by this author First published: February 5, 1974 https://doi.org/10.1002/chin.197405380AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume5, Issue5February 5, 1974 RelatedInformation

AbstractAus den Isocarbostyrilen (Ia) und (IIa) erhält man mit dem Äthylenketal von 5‐Brom‐2‐pentanon die N‐Alkylierungsprodukte (Ib) und (IIb), die durch Hydrolyse mit wäßriger Säure zu den Ketonen (Ic) und (IIc) deketalisiert werden.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon-13 nuclear magnetic resonance spectroscopy of naturally occurring substances. AlkaloidsErnest Wenkert, Jasjit S. Bindra, Ching-Jer Chang, David W. Cochran, and Fred M. SchellCite this: Acc. Chem. Res. 1974, 7, 2, 46–51Publication Date (Print):February 1, 1974Publication History Published online1 May 2002Published inissue 1 February 1974https://doi.org/10.1021/ar50074a003RIGHTS & PERMISSIONSArticle Views420Altmetric-Citations177LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (739 KB) Get e-Alerts Get e-Alerts

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon-13 nuclear magnetic resonance spectroscopy of naturally occurring substances. XXXIV. Monomeric quinolinic Melodinus alkaloidsMichel Daudon, Hachem Mehri, Michel M. Plat, Edward W. Hagaman, Fred M. Schell, and Ernest WenkertCite this: J. Org. Chem. 1975, 40, 19, 2838–2839Publication Date (Print):September 1, 1975Publication History Published online1 May 2002Published inissue 1 September 1975https://pubs.acs.org/doi/10.1021/jo00907a031https://doi.org/10.1021/jo00907a031research-articleACS PublicationsRequest reuse permissionsArticle Views242Altmetric-Citations41LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Chemischer InformationsdienstVolume 4, Issue 39 Physical Organic Chemistry ChemInform Abstract: CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURRING SUBSTANCES PART 19, ASPIDOSPERMA ALKALOIDS ERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorDAVID W. COCHRAN, DAVID W. COCHRANSearch for more papers by this authorEDWARD W. HAGAMAN, EDWARD W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorNORBERT NEUSS, NORBERT NEUSSSearch for more papers by this authorA. S. KATNER, A. S. KATNERSearch for more papers by this authorPIERRE POTIER, PIERRE POTIERSearch for more papers by this authorCHRISTIANE KAN, CHRISTIANE KANSearch for more papers by this authorMICHEL PLAT, MICHEL PLATSearch for more papers by this authorMICHEL KOCH, MICHEL KOCHSearch for more papers by this authorHACHEM MEHRI, HACHEM MEHRISearch for more papers by this authorJACQUES POISSON, JACQUES POISSONSearch for more papers by this authorNICOLE KUNESCH, NICOLE KUNESCHSearch for more papers by this authorY. ROLLAND, Y. ROLLANDSearch for more papers by this author ERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorDAVID W. COCHRAN, DAVID W. COCHRANSearch for more papers by this authorEDWARD W. HAGAMAN, EDWARD W. HAGAMANSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this authorNORBERT NEUSS, NORBERT NEUSSSearch for more papers by this authorA. S. KATNER, A. S. KATNERSearch for more papers by this authorPIERRE POTIER, PIERRE POTIERSearch for more papers by this authorCHRISTIANE KAN, CHRISTIANE KANSearch for more papers by this authorMICHEL PLAT, MICHEL PLATSearch for more papers by this authorMICHEL KOCH, MICHEL KOCHSearch for more papers by this authorHACHEM MEHRI, HACHEM MEHRISearch for more papers by this authorJACQUES POISSON, JACQUES POISSONSearch for more papers by this authorNICOLE KUNESCH, NICOLE KUNESCHSearch for more papers by this authorY. ROLLAND, Y. ROLLANDSearch for more papers by this author First published: September 25, 1973 https://doi.org/10.1002/chin.197339081Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume4, Issue39September 25, 1973 RelatedInformation

AbstractThe structure of vincarodine has been determined to be 1 by an investigation of its IR.‐, UV.‐, 1H‐ and 13C‐NMR.‐ and mass spectra. A 13C‐NMR. analysis has been performed on the bases vincamine (2), epivincine (9), 14, 15‐dehydrovincine (7) and its 16‐epimer (8).

Zusammenfassung Die13C-NMR-Spektren des Tetrahydrocannabinols und seiner Isomeren wurden aufgenommen und vollständig analysiert.

Chemischer InformationsdienstVolume 3, Issue 5 Natural Products ChemInform Abstract: (13)C-NMR-SPEKTROSKOPIE NATUERLICH VORKOMMENDER SUBSTANZEN 7. MITT. (13)C-NMR-SPEKTROSKOPIE MIT HILFE PARAMAGNETISCHER VERSCHIEBUNGSAGENZIEN ERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorDAVID W. COCHRAN, DAVID W. COCHRANSearch for more papers by this authorEDWARD W. HAGAMAN, EDWARD W. HAGAMANSearch for more papers by this authorR. BURTON LEWIS, R. BURTON LEWISSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this author ERNEST WENKERT, ERNEST WENKERTSearch for more papers by this authorDAVID W. COCHRAN, DAVID W. COCHRANSearch for more papers by this authorEDWARD W. HAGAMAN, EDWARD W. HAGAMANSearch for more papers by this authorR. BURTON LEWIS, R. BURTON LEWISSearch for more papers by this authorF. M. SCHELL, F. M. SCHELLSearch for more papers by this author First published: February 1, 1972 https://doi.org/10.1002/chin.197205072AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume3, Issue5February 1, 1972 RelatedInformation

Die13C-NMR-Spektren des Tetrahydrocannabinols und seiner Isomeren wurden aufgenommen und vollständig analysiert.