Enantioselective Polyene Cyclization via Organo-SOMO Catalysis
作者:Sebastian Rendler、David W. C. MacMillan
DOI:10.1021/ja100185p
日期:2010.4.14
The first organocatalyticenantioselective radical polycyclization has been accomplished using singly occupied molecular orbital (SOMO) catalysis. The presented strategy relies on a selective single-electron oxidation of chiral enamines formed by condensation of polyenals with an imidazolidinone catalyst employing a suitable copper(II) oxidant. The reaction proceeds under mildly acidic conditions at