Chemistry Letters

Regioreversed allylation in Lewis acid-mediated and photochemical addition reactions of unsymmetric. ALPHA.-diketones with allylic stannanes.

A Takuwa, Y Nishigaichi, K Yamashita, H Iwamoto

文献索引：Takuwa, Akio; Nishigaichi, Yutaka; Yamashita, Koichi; Iwamoto, Hidetoshi Chemistry Letters, 1990 , # 9 p. 1761 - 1764

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摘要

In the photochemical reaction of allyl-and benzyltrimethylstannanes with unsymmetric α- diketones (PhCOCOR), the allylic group was introduced to the benzoyl carbon in high or excellent selectivity, whereas the acyl carbon was allylated either exclusively or predominantly under BF 3-mediated reaction.