AbstractReaction of the alkoxyacetylenes (II) with the plumbylsilazane (I) gives the plumbylethynyl ethers (III).

AbstractHydroboration of the acetylene ethers (I) with the boranes (II) and subsequent work‐up with higher alkanols yield stereo‐ and regioselectitively the cis‐vinyl ethers (IV).

Chemischer InformationsdienstVolume 17, Issue 9 Heterocyclic Compounds ChemInform Abstract: 1,3-Dipolar Cycloaddition of Diazomethane to (Si, Ge, Sn)-Substituted Alkoxyacetylenes. A. S. KOSTYUK, A. S. KOSTYUKSearch for more papers by this authorK. A. KNYAZ'KOV, K. A. KNYAZ'KOVSearch for more papers by this authorS. V. PONOMAREV, S. V. PONOMAREVSearch for more papers by this authorI. F. LUTSENKO, I. F. LUTSENKOSearch for more papers by this author A. S. KOSTYUK, A. S. KOSTYUKSearch for more papers by this authorK. A. KNYAZ'KOV, K. A. KNYAZ'KOVSearch for more papers by this authorS. V. PONOMAREV, S. V. PONOMAREVSearch for more papers by this authorI. F. LUTSENKO, I. F. LUTSENKOSearch for more papers by this author First published: March 4, 1986 https://doi.org/10.1002/chin.198609162Read 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. Volume17, Issue9March 4, 1986 RelatedInformation

1,3-Dipolar cycloaddition of diazomethane to the triple bond of trialkylsilyl-, trialkylgermyl-, and trialkylstannylalkoxyacetylenes proceeds regioselectivity and is a convenient method for synthesis of the previously not described 3(5)-element-substituted 4-alkoxypyrazoles. When heated in methanol in the presence of an acid, 3(5)-silyl(germyl)-4-alkoxypyrazoles are slowly hydrolyzed with cleavage of the element-carbon bond.

Chemischer InformationsdienstVolume 17, Issue 18 Organoelement Compounds ChemInform Abstract: Synthesis and Transformation of Biselementorganic (Si, B) N,N-Dimethylamides of Acetic Acid. S. V. PONOMAREV, S. V. PONOMAREVSearch for more papers by this authorS. I. NIKOLAEVA, S. I. NIKOLAEVASearch for more papers by this authorA. S. KOSTYUK, A. S. KOSTYUKSearch for more papers by this authorYU. K. GRISHIN, YU. K. GRISHINSearch for more papers by this author S. V. PONOMAREV, S. V. PONOMAREVSearch for more papers by this authorS. I. NIKOLAEVA, S. I. NIKOLAEVASearch for more papers by this authorA. S. KOSTYUK, A. S. KOSTYUKSearch for more papers by this authorYU. K. GRISHIN, YU. K. GRISHINSearch for more papers by this author First published: May 6, 1986 https://doi.org/10.1002/chin.198618247Read 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. Volume17, Issue18May 6, 1986 RelatedInformation