Attachment of carbonyl functionalities onto olefins via copper-promoted radical reaction of dichloromethylcyanides
作者:Shin Kamijo、Shinya Yokosaka、Masayuki Inoue
DOI:10.1016/j.tet.2012.01.089
日期:2012.7
Chemo- and regioselective protocols for attachment of various carbonyl functionalities onto unactivated olefins have been developed. Atom transfer radical reactions of Cl3CCN, Cl2C(R)CN, and Cl2C(CN)2 were all promoted efficiently by a catalytic amount of CuCl and 1,1′-bis(diphenylphosphino)ferrocene to introduce chloromethylcyanide and chloride units to the C–Cdoublebonds. Conversion of the chloromethylcyanide
Microwave-assisted atom transfer radical addition of polychlorinated compounds to olefins without addition of metal catalysts
作者:Shin Kamijo、Shoko Matsumura、Masayuki Inoue
DOI:10.1016/j.tetlet.2012.06.027
日期:2012.8
A new operationally simple and robust protocol for the metal-free atom transfer radical reaction (ATRA) has been developed. Polychlorinated compounds were effectively reacted with unactivated terminal olefins to generate 1,3-dichlorinated adducts under microwave irradiation in the presence of silicon carbide (SiC) as a heating element. The present microwave-assisted ATRA proceeds under essentially