Ir(III)-Catalyzed Carbocarbation of Alkynes through Undirected Double C–H Bond Activation of Anisoles
摘要:
A novel, electron-deficient cyclopentadienyl iridium(III) catalyst enables sequential cleavage of arene C(sp(2))-H and methoxy C(sp(3))-H bonds of anisoles, generating reactive metalacycles that insert difluoroalkynes to afford chromenes under mild reaction conditions. This transformation is an arylalkylation of an alkyne-a carbocarbation-via a nonchelate-assisted cleavage of two C-H bonds.
Ir(III)-Catalyzed Carbocarbation of Alkynes through Undirected Double C–H Bond Activation of Anisoles
摘要:
A novel, electron-deficient cyclopentadienyl iridium(III) catalyst enables sequential cleavage of arene C(sp(2))-H and methoxy C(sp(3))-H bonds of anisoles, generating reactive metalacycles that insert difluoroalkynes to afford chromenes under mild reaction conditions. This transformation is an arylalkylation of an alkyne-a carbocarbation-via a nonchelate-assisted cleavage of two C-H bonds.
Mild protection and deprotection of alcohols as ter-butyl ethers in the field of pheromone synthesis
作者:A Alexakis、M Gardette、S Colin
DOI:10.1016/0040-4039(88)85055-x
日期:1988.1
The hydroalumination of ω-terbutoxy alkynes an easy access to ω-hydroxy alkenyl iodides application to the synthesis of dienic insect pheromones
作者:A. Alexakis、J.M. Duffault
DOI:10.1016/s0040-4039(00)82315-1
日期:1988.1
ALEXAKIS, A.;GARDETTE, M.;COLIN, S., TETRAHEDRON LETTERS, 29,(1988) N 24, C. 2951-2954
作者:ALEXAKIS, A.、GARDETTE, M.、COLIN, S.
DOI:——
日期:——
ALEXAKIS, A.;DUFFAULT, J. M., TETRAHEDRON LETT., 29,(1988) N 48, C. 6243-6246
作者:ALEXAKIS, A.、DUFFAULT, J. M.
DOI:——
日期:——
Synthesis of Homopolymers and Block Copolymers
申请人:Breitenkamp Kurt
公开号:US20110124840A1
公开(公告)日:2011-05-26
The present invention relates to the field of polymer chemistry and more particularly to homopolymers and block copolymers and methods of preparing the same.