Palladium-catalyzed alkoxycarbonylation of (Z)-2-en-4-yn carbonates leading to 2,3,5-trienoates
Pd(0)-catalyzed carbonylation of (Z)-2-en-4-yn carbonates in the presence of a balloon pressure of CO in an alcohol donates vinylallenyl esters with an exclusively E-configuration and in high yields. The fact that no such reactivity could be observed with
Akpinar, G. Eray,Kus, Melih,Uecuencue, Muhammed,Karakus, Erman,Artok, Levent
p. 748 - 751
(2011/04/24)
Synthesis of pyrroles through coupling of enyne-hydrazones with fischer carbene complexes
Matrix presented The coupling of enyne-imines with Fischer carbene complexes leads to the formation of alkenylpyrrole derivatives. Maximum yields of pyrrole adducts were obtained using N,N-dimethylhydrazones. A mechanism involving alkyne insertion followe
Zhang, Yanshi,Herndon, James W.
p. 2043 - 2045
(2007/10/03)
STEREOSELECTIVE SYNTHESIS AND THERMAL BEHAVIOR OF (Z)-EPOXYHEXENYNES: A SIMPLE AND GENERAL ROUTE TO 2-VINYLFURANS
An efficient approach for the synthesis of 2,3-disubstituted furans (2a-j/3a-j) is described by using the thermally induced rearrangement of epoxyhexenynes (1a-j) which are prepared by streoselective synthesis of the (Z)-pentenynals 10 and subsequent Darz
Eberbach, Wolfgang,Roser, Joachim
p. 2797 - 2802
(2007/10/02)
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