Stereospecific and stereodivergent construction of quaternary carbon centers through switchable directed/nondirected allylic substitution

B Breit, P Demel, C Studte

Index: Breit, Bernhard; Demel, Peter; Studte, Christopher Angewandte Chemie - International Edition, 2004 , vol. 43, # 29 p. 3786 - 3789

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Citation Number: 74

Abstract

The enantioselective construction of quaternary stereogenic carbon centers is a challenge in organic synthesis. Much progress has been made with enantioselective catalytic methods, but still no general solution to this synthetic problem exists.[1] A reliable alternative strategy for the predictable installation of a quaternary stereocenter is 1, 3-chirality transfer from a more readily accessible stereogenic center by a sigmatropic process, such as the Claisen ...