Palladium-Catalyzed Tandem Fluorination and Cyclization of Enynes
摘要:
A novel palladium-catalyzed tandem fluorination and cyclization of enynes has been developed. A favorable cis-fluoropalladation is proposed as a key step to construct a vinyl-F bond, and the final C-5p3-Pd bond is reduced by alcohol. This transformation represents an efficient road to synthesize fluorinated lactams.
Palladium‐Catalyzed Oxidative Cyclization of Enynes with Hydrogen Peroxide as the Oxidant
作者:Guoyin Yin、Guosheng Liu
DOI:10.1002/anie.200801438
日期:2008.7.7
Palladium-Catalyzed Tandem Fluorination and Cyclization of Enynes
作者:Haihui Peng、Guosheng Liu
DOI:10.1021/ol103039x
日期:2011.2.18
A novel palladium-catalyzed tandem fluorination and cyclization of enynes has been developed. A favorable cis-fluoropalladation is proposed as a key step to construct a vinyl-F bond, and the final C-5p3-Pd bond is reduced by alcohol. This transformation represents an efficient road to synthesize fluorinated lactams.
Selective ene-yne coupling-functionalization: A new strategy in constructing heterocycles
作者:Zhong Wang、Xiyan Lu
DOI:10.1016/0040-4020(95)00035-7
日期:1995.2
Fluorinated derivatives of 3-alkylidene-2(3H)-dihydrofuranone have been synthesized by sodium dithionite initiated tandem perfluoroalkylation-cyclization of allylic 2-alkynoates in fair to good yield and high stereoselectivity. Fluorinated 3-alkylidene-2(3H)-pyrrolidone derivatives were prepared similarly. A mechanistic rationale concerning the different radical steps and the differences between esters