Ruthenium-catalyzed coupling of unactivated olefins with unactivated alkynes
作者:Masahiro Murakami、Minoru Ubukata、Yoshihiko Ito
DOI:10.1016/s0040-4039(98)01580-9
日期:1998.10
A new ruthenium-catalyzed coupling reaction of an olefin with an alkyne is presented. The CH bond of the olefin formally undergoes transaddition to the CC triple bond to produce conjugated dienes.
A new modification of Julia-Kocienski olefination reaction based on the use of cation-specific chelating agents that yields 1,3-dienes with predictable (E/Z)-selectivity on newly created double bond was developed. The influence of the aldehyde Structure on reaction (E/Z) selectivity is discussed and rationalized.
Stereoselective E and Z olefin formation by Wittig olefination of aldehydes with allylic phosphorus ylides. Stereochemistry
作者:Rui Tamura、Koji Saegusa、Masato Kakihana、Daihei Oda
DOI:10.1021/jo00247a012
日期:1988.6
Palladium-catalyzed cross-coupling of vinylic tellurides and potassium vinyltrifluoroborate salt: synthesis of 1,3-dienes
作者:Rodrigo Cella、Aline T.G. Orfão、Hélio A. Stefani
DOI:10.1016/j.tetlet.2006.05.088
日期:2006.7
Here we report an ultrasound-assisted synthesis of stereodefined 1,3-dienes by Suzuki-Miyaura cross-coupling reactions of vinylic tellurides and potassium beta-styryl trifluoroborate salt. (c) 2006 Elsevier Ltd. All rights reserved.