AgAsF6 as safe alternative to AgClO4 for generating cationic zirconocene species: Utilities in lewis acid-promoted selective CC bond forming reactions
synthesis, AgAsF6 proved to be an efficient catalyst that serves as a safe alternative to AgClO4. Scope and limitation is discussed on this new catalyst in the processes including (1) alkyl/alkenyl transfer reaction from organozirconocene chloride to aldehyde, (2) two- and four-carbon homologation of aldehyde, (3) dual synthetic methods of 1,3-dienes from aldehydes/ketones via 1,3-bimetallic species
New and highly (E)-selective synthesis of terminal 1,3-diene via three-carbon elongation of aldehyde
作者:Hideki Maeta、Keisuke Suzuki
DOI:10.1016/s0040-4039(00)61102-4
日期:1992.9
A new synthetic method of 1,3-diene by three-carbon elongation of aldehyde is described. 3-Trimethylsilyl-1-propenylzirconocene chloride (2), generated from 3-trimethylsilyl-1-propyne (1) and Cp2Zr(H)Cl, reacts with aldehyde in the presence of catalytic AgClO4 and subsequent one-pot 1,4-elimination affords 1,3-dienes in high yields with excellent (E)-selectivities.
Cross-coupling of organosilanes with organic halides mediated by a palladium catalyst and tris(diethylamino)sulfonium difluorotrimethylsilicate
作者:Yasuo Hatanaka、Tamejiro Hiyama
DOI:10.1021/jo00239a056
日期:1988.2
Pheromone XXXIV. Synthese konjugiert-ungesättigter Lepidopterenpheromone und Analoga
作者:Hans Jürgen Bestmann、Joachim Süß、Otto Vostrowsky
DOI:10.1002/jlac.198119811205
日期:1981.12.24
Nach Art eines “Baukastensystems” werden konjugiert-ungesättigte Alkadienylacetate, Alkadienole und Alkadienale, wie sie als Sexualpheromone weiblicher Schmetterlinge bekannt sind, mit unterschiedlichen Positionen und Geometrien der Doppelbindungen synthetisiert.