ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPyrimidines. VI. A Study of the Nuclear Reduction of Certain Pyrimidines1Harvey Aft and Bert E. ChristensenCite this: J. Org. Chem. 1962, 27, 6, 2170–2173Publication Date (Print):June 1, 1962Publication History Published online1 May 2002Published inissue 1 June 1962https://pubs.acs.org/doi/10.1021/jo01053a066https://doi.org/10.1021/jo01053a066research-articleACS PublicationsRequest reuse permissionsArticle Views175Altmetric-Citations8LEARN 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

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of 2,4,7-Trichloroimidazo[4,5-d]pyridazine and Certain of Its Derivatives1Paul H. Laursen and Bert E. ChristensenCite this: J. Org. Chem. 1962, 27, 7, 2500–2504Publication Date (Print):July 1, 1962Publication History Published online1 May 2002Published inissue 1 July 1962https://pubs.acs.org/doi/10.1021/jo01054a047https://doi.org/10.1021/jo01054a047research-articleACS PublicationsRequest reuse permissionsArticle Views144Altmetric-Citations6LEARN 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

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPsoralenes. III. Cyclization Studies of Certain Substituted Coumarins and Coumarans1ROBERT C. ESSE and BERT E. CHRISTENSENCite this: J. Org. Chem. 1960, 25, 9, 1565–1569Publication Date (Print):September 1, 1960Publication History Published online1 May 2002Published inissue 1 September 1960https://pubs.acs.org/doi/10.1021/jo01079a024https://doi.org/10.1021/jo01079a024research-articleACS PublicationsRequest reuse permissionsArticle Views205Altmetric-Citations19LEARN 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

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPsoralene I: Certain Reactions of Xanthotoxin*MERVIN E. BROKKE and BERT E. CHRISTENSENCite this: J. Org. Chem. 1958, 23, 4, 589–596Publication Date (Print):April 1, 1958Publication History Published online1 May 2002Published inissue 1 April 1958https://pubs.acs.org/doi/10.1021/jo01098a023https://doi.org/10.1021/jo01098a023research-articleACS PublicationsRequest reuse permissionsArticle Views250Altmetric-Citations47LEARN 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

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPurines. VII. The Preparation of Certain 6-Alkylamino- and 6-Dialkylaminopurines1Melvin Sutherland and Bert E. ChristensenCite this: J. Am. Chem. Soc. 1957, 79, 9, 2251–2252Publication Date (Print):May 1, 1957Publication History Published online1 May 2002Published inissue 1 May 1957https://doi.org/10.1021/ja01566a060RIGHTS & PERMISSIONSArticle Views60Altmetric-Citations10LEARN 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 (243 KB) Get e-Alerts Get e-Alerts

Recent studies have shown that following injection of acetate-1-C14, into mature green tomatoes, radio- activity appears in the respiratory C02, protein, or- ganic acids and certain other fractions isolated from the homogenized tomatoes ( 27).Degradation of citric and malic acids isolated therefrom indicated the active operation of the tricarboxylic acid cycle as the major pathway of acetate metabolism and the biosynthesis of citric acid.To trace the mode of biosynthesis of C4 acids, further experiments have been carried out in this labo- ratory using green tomatoes in the dark with C140, and CH3C14OCOOH as test substrates, respectively.Data from degradation studies on citric and malic acids are presented which reveal that although the C3 + C1-type condensation is present in this fruit, it is probably not the major pathway for the biosynthesis of malic acid.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Preparation and Properties of Certain 2- and 4-Chloro Substituted Pteridines1John W. Daly and Bert E. ChristensenCite this: J. Am. Chem. Soc. 1956, 78, 1, 225–228Publication Date (Print):January 1, 1956Publication History Published online1 May 2002Published inissue 1 January 1956https://pubs.acs.org/doi/10.1021/ja01582a062https://doi.org/10.1021/ja01582a062research-articleACS PublicationsRequest reuse permissionsArticle Views137Altmetric-Citations13LEARN 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

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbohydrate Metabolism in Bakers' Yeast.1,2 I. Time Course Study of Glucose UtilizationChih H. Wang, Charles T. Gregg, Isabelle A. Forbusch, Bert E. Christensen, and Vernon H. CheldelinCite this: J. Am. Chem. Soc. 1956, 78, 9, 1869–1872Publication Date (Print):May 1, 1956Publication History Published online1 May 2002Published inissue 1 May 1956https://pubs.acs.org/doi/10.1021/ja01590a025https://doi.org/10.1021/ja01590a025research-articleACS PublicationsRequest reuse permissionsArticle Views113Altmetric-Citations32LEARN 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

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAdditions and Corrections - Purines. VI. The Preparation of Certain 6-Substituted- and 6,9-Disubstituted PurinesJohn W. Daly and Bert E. ChristensenCite this: J. Org. Chem. 1956, 21, 12, 1553Publication Date (Print):December 1, 1956Publication History Published online21 February 2003Published inissue 1 December 1956https://pubs.acs.org/doi/10.1021/jo01118a630https://doi.org/10.1021/jo01118a630research-articleACS PublicationsRequest reuse permissionsArticle Views29Altmetric-Citations-LEARN 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

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEpimerization and Fragmentation of Glucose by Quaternary Ammonium Base Type Anion Exchange Resins1Donald R. Buhler, Richard C. Thomas, B. E. Christensen, and Chih H. WangCite this: J. Am. Chem. Soc. 1955, 77, 2, 481–482Publication Date (Print):January 1, 1955Publication History Published online1 May 2002Published inissue 1 January 1955https://doi.org/10.1021/ja01607a079Request reuse permissions Article Views112Altmetric-Citations11LEARN 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 (305 KB) Get e-Alertsclose Get e-Alerts