Observations made during the synthesis of the anticancer agent homoharringtonine 37 have resulted in the development of several new synthetic methods based upon the alkylation and conjugate-addition chemistry of γ-methoxy allylsulfonyl anions. Enones, dienyl ketones, and trienyl ketones are readily constructed. Sultinium ion intermediates facilitate the sulfone to olefin transformation.
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Jin et al. (1994) studied this question.
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