Macrocycles by Olefination of Dialdehydes with 1,3-Bis(dimethylphosphono)-2-propanone
作者:George Büchi、Hans Wüest
DOI:10.1002/hlca.19790620816
日期:1979.12.12
membered rings have been prepared in a single step by condensation of 1,3-bis (dimethylphosphono)-2-propanone (10) with the dialdehydes 14, 17, 20, and 42 in the presence of hydrogencarbonate in aqueous t-butyl alcohol at reflux without using high dilution techniques. The more highly unsaturated aldehydes give better yields and ketones 34 and 36, or mixtures of the two, were transformed to muscone (1) and