Transition-Metal-Catalyzed Formation of <i>trans </i>Alkenes via Coupling of Aldehydes
作者:Shifa Zhu、Yuanxi Liao、Shizheng Zhu
DOI:10.1021/ol036197s
日期:2004.2.1
[reaction: see text] Rh(2)(OAc)(4) catalyzed the formation of exclusively trans fluorinated alkenes from aldehydes and pentafluorobenzaldehyde tosylhydrazone salts, which were readily prepared from pentafluorobenzaldehyde using the Bamford-Stevens reaction. A series of pentafluorophenyl-containing alkenes were synthesized from aldehydes in moderate to good yields under mild reaction conditions in a
A Facile Synthesis of Pentafluorophenyl Olefins<i>via</i>an Arsonium Ylide
作者:Yanchang Shen、Weiming Qiu
DOI:10.1055/s-1987-27848
日期:——
The in situ reaction of (pentafluorophenylmethylene)triphenylarsorane, generated from methylenetriphenylarsorane and hexafluorobenzene, with aromatic aldehydes gives good to excellent yields of pentafluorophenyl olefins with high stereoselectivity.