Catalytic Anti-Markovnikov Hydroallylation of Terminal and Functionalized Internal Alkynes: Synthesis of Skipped Dienes and Trisubstituted Alkenes
作者:Melrose Mailig、Avijit Hazra、Megan K. Armstrong、Gojko Lalic
DOI:10.1021/jacs.7b02104
日期:2017.5.24
and functionalized internal alkynes. In this article, we describe the development of the reaction, exploration of the substrate scope, and a study of the reaction mechanism. Synthesis of skipped dienes through the hydroallylation of terminal alkyl and aryl alkynes with simple allyl phosphates and 2-substituted allyl phosphates is described. The hydroallylation of functionalized internal alkynes leads
Vinylmercurials react readily with allylic halides, lithium chloride and palladium chloride in tetrahydrofuran to give 1,4-dienes. Some reactions proceed well using only catalytic amounts of palladium chloride while others require stoichiometric amounts. The yields decrease with increasing substitution about the carboncarbon double bond of the allylic halide. The reactions appear to proceed through
Allylation of Vinylalanes. A Convenient Synthesis of Isomerically Pure<i>trans</i>-1,4-Dienes
作者:Richard A. LYND、George ZWEIFEL
DOI:10.1055/s-1974-23393
日期:——
LAROCK R. C.; BERNHARDT J. C.; DRIGGS R. J., J. ORGANOMETAL. CHEM., 1978, 156, NO 1, 45-54
作者:LAROCK R. C.、 BERNHARDT J. C.、 DRIGGS R. J.
DOI:——
日期:——
The Hydroboration-Iodination of Dialkylselenoacetylenes to Vinylic Diselenides
作者:De-Yu Yang、Xian Huang
DOI:10.1055/s-1997-959
日期:1997.8
The hydroboration of dialkylselenoacetylenes 1, generated from alkylseleno bromides and sodium acetylide in liquid ammonia, with dicycloalkylboranes followed by iodination under basic condition produced (Z)/(E)-vinylic diselenides (2/3). The reaction proceeds with a transfer of one cycloalkyl group and smoothly to give major 2 and minor 3 in almost quantitative ratio (2:3=93:7 to 97:3). The hydroboration-iodination process provides a general method for synthesis of (Z)-vinylic diselenides containing cyclic systems.