ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteroids. LXIX.1,2a,bA Novel Michael Addition-Aldol Condensation Reaction between Acetone and Δ16-12,20-DiketopregnenesMonroe E. Wall, Samuel. Serota, Harold E. Kenney, and G. Shuford. AbernethyCite this: J. Am. Chem. Soc. 1963, 85, 12, 1844–1850Publication Date (Print):June 1, 1963Publication History Published online1 May 2002Published inissue 1 June 1963https://pubs.acs.org/doi/10.1021/ja00895a034https://doi.org/10.1021/ja00895a034research-articleACS PublicationsRequest reuse permissionsArticle Views140Altmetric-Citations3LEARN 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 ISSUEPREVArticleNEXTSteroidal Sapogenins. LVII. 11α-Hydroxylation of Tigogenin Derivatives2Harold E. Kenney, Samuel Serota, Elmer A. Weaver, and Monroe E. WallCite this: J. Am. Chem. Soc. 1960, 82, 14, 3689–3691Publication Date (Print):July 1, 1960Publication History Published online1 May 2002Published inissue 1 July 1960https://doi.org/10.1021/ja01499a054RIGHTS & PERMISSIONSArticle Views51Altmetric-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 InReddit PDF (396 KB) Get e-Alertsclose Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteroidal Sapogenins. XLVII. Preparation of 16α,17α-Epoxy-11α-hydroxypregnane-3,20-dione from 5β-Spirostanes2Harold E. Kenney, Elmer A. Weaver, and Monroe E. WallCite this: J. Am. Chem. Soc. 1958, 80, 20, 5568–5570Publication Date (Print):October 1, 1958Publication History Published online1 May 2002Published inissue 1 October 1958https://pubs.acs.org/doi/10.1021/ja01553a063https://doi.org/10.1021/ja01553a063research-articleACS PublicationsRequest reuse permissionsArticle Views76Altmetric-Citations7LEARN 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
This is a report of the chemical examination of the fourth 1,000 accessions in a survey of plants for steroidal sapogenins and is thus a continuation of the reports on the first three 1,000 accessions (1-6). Data are given for 950 samples, representing 100 families, 272 genera, and 432 identified species. Of these, 14 families, 151 genera, and 376 species are new in this series. Quantitative data are given for the occurrence of 15 steroidal sapogenins, of which two, gentrogenin and correllogenin, are new. Qualitative data are given for the occurrence of these groups of constituents: saponins, flavonoids, alkaloids, tannins, and unsaturated sterols. There is no previously published chemical information on about 50 per cent of the species examined.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteroidal Sapogenins. XXVIII.2 Conversion of Steroidal Sapogenins to Δ16-20-Keto-pregnenes3Monroe E. Wall, Harold E. Kenney, and Edward S. RothmanCite this: J. Am. Chem. Soc. 1955, 77, 21, 5665–5668Publication Date (Print):November 1, 1955Publication History Published online1 May 2002Published inissue 1 November 1955https://pubs.acs.org/doi/10.1021/ja01626a059https://doi.org/10.1021/ja01626a059research-articleACS PublicationsRequest reuse permissionsArticle Views125Altmetric-Citations50LEARN 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 ISSUEPREVArticleNEXTSteroidal Sapogenins. XXVIII.2 Conversion of Steroidal Sapogenins to Δ16-20-Keto-pregnenes3Monroe E. Wall, Harold E. Kenney, and Edward S. RothmanCite this: J. Am. Chem. Soc. 1955, 77, 21, 5665–5668Publication Date (Print):November 1, 1955Publication History Published online1 May 2002Published inissue 1 November 1955https://doi.org/10.1021/ja01626a059RIGHTS & PERMISSIONSArticle Views118Altmetric-Citations49LEARN 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 (584 KB) Get e-Alerts Get e-Alerts