3,3-dimethyl-7-methylenecycloocta-1,5-dione, a versatile building block for the preparation of substituted cyclooctadienones and δ-valerolactones
作者:Jerzy A. Bajgrowicz、Martin Petrzilka
DOI:10.1016/s0040-4020(01)90474-0
日期:——
the substituent R and the applied reaction conditions, an acid-catalyzed rearrangement of these hemiketals leads to the cyclooctadienones 12 in either pure form or in admixture with δ-valerolactones 11 or substituted cyclohexenones.