Prelactona B
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1. Addition of Chiral Allyltrichlorostannanes to Chiral Aldehydes : total syntheseis of (+)-Prelactone B / Adição de aliltriclorestanana quirais a aldeidos quirais : sintese total da (+)-prelactona B
The Lewis-acid mediated reaction of allylsilanes and allylstannanes with aldehydes is a well-known procedure for the preparation of homoallylic alcohols. Chiral allyltrichlorostannanes react with chiral a-methyl, b-alkoxy and syn and anti a-methyl-b-alkoxy aldehydes to give the corresponding homoallylic alcohols with moderate to high 1,4-syn-diastereoselecti
Publicado em: 2006