catalytic condensation of carboxylic acids with equimolar amounts of alcohols is the most desirable. Although several highly active dehydration catalysts have been reported, more efficient alternatives are still strongly needed because the dehydrative esterification of tertiary alcohols, phenols, acid-sensitive alcohols, amino acids, and hardly soluble alcohols has never proceeded satisfactorily. Here
Novel tandem “ene-ISMS” methodology. Efficient and versatile assembly of a pseudomonic acid C analogue
作者:István E Markó、Jean-Marc Plancher
DOI:10.1016/s0040-4039(99)00996-x
日期:1999.7
The pseudomonicacidC analogue 19 can be readily constructed using a novel tandem methodology involving, as a key-step, an ene-reaction followed by a concomitant Intramolecular Silyl-Mediated Sakurai (ISMS) cyclisation.