Partial reduction of alkynes to (Z)-alkenes is achieved with the low-valent group 5 metal reagents prepared from MtlCl5 (Mtl = Nb or Ta) and zinc in a mixed solvent of DME (or THF) and benzene.
Ligand Effects on Negishi Couplings of Alkenyl Halides
作者:Arkady Krasovskiy、Bruce H. Lipshutz
DOI:10.1021/ol2010165
日期:2011.8.5
Negishi couplings at olefinic centers do not always occur with the anticipated maintenance of stereochemistry. The source of erosion has been traced to the ligand, and a modified method has been developed that solves the stereochemical issue and significantly improves yields of Negishi couplings in general.
A study on the transition state in the photooxygenations by aromatic amine N-oxides
作者:Yuji Ogawa、Shigeo Iwasaki、Shigenobu Okuda
DOI:10.1016/s0040-4039(01)92909-0
日期:——
Olefin inversion. 2. Sodium iodide reductions of vic-bromochlorides and vic-dichlorides
作者:Philip E. Sonnet、James E. Oliver
DOI:10.1021/jo00882a016
日期:1976.10
Elsner; Paul, Journal of the Chemical Society, 1935, p. 3156,3160