Tetrahedron Letters

Regiospecific directed aldol reactions of methyl ketones with aldehydes

I Kuwajima, T Sato, M Arai, N Minami

Index: Kuwajima,I. et al. Tetrahedron Letters, 1976 , # 21 p. 1817 - 1820

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Abstract

In the nmr of the product, the absorption at ca. 6 2.1 characteristic of acetyl group, is little detected, showing the reaction took place exclusively on the methyl site of the ketones. Absence of the regioisomer 3 in the product was confirmed further (a) by comparison with an authentic mixture of 2 and 3 10