Rhodium(II)-catalyzed nondirected oxidative alkenylation of arenes: arene loading at one equivalent.
A bimetallic Rh(II) catalyst promoted the C-H alkenylation of simple arenes at 1.0 equivalent without the use of a directing group. A phosphine ligand as well as cooperative reoxidation of Rh(II) with Cu(TFA)2 and V2O5 proved essential in providing monoalkenylated products in good yields and selectivities, especially with di- and trisubstituted arenes.
Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA 92037 (USA) http://www.scripps.edu/chem/yu.
Harit U
HU
Vora
Anthony P
AP
Silvestri
Casper J
CJ
Engelin
Jin-Quan
JQ
Yu
D000475:Alkenes / Q000737:chemistry*; D001555:Benzene Derivatives / Q000737:chemistry*; D002384:Catalysis; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D012238:Rhodium / Q000737:chemistry*; D013237:Stereoisomerism
D000475:Alkenes; D001555:Benzene Derivatives; D009942:Organometallic Compounds; D012238:Rhodium
CH activation; alkenylation; bimetallic catalysts; homogeneous catalysis; rhodium