Synthesis of 7a-Substituted Hajos−Wiechert Ketone Analogues
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A general and efficient route to 2-substituted 1,3-cyclopentadiones 3 has been developed. This operationally simple, two-step procedure is amenable to multigram scale preparations of these useful synthetic intermediates. These compounds are then transformed to previously unknown, higher analogues of the Hajos−Parrish−Eder−Sauer−Wiechert ketone (enone 1, R = Me) following an enantioselective Robinson annulation.
创建时间：
2016-02-27
