Selective Synthesis of o-Acylbenzylphosphonates by Insertion Reactions of Arynes into β-Ketophosphonates
摘要:
A mild method for selective synthesis of o-acylbenzylphosphonates has been developed by the reactions of arynes with beta-ketophosphonates. In the presence of CsF and THF, the carbon-carbon sigma-bonds of 2-oxopropylphosphonates were selectively cleaved and added to arynes providing the corresponding 2-acylbenzylphosphonates in moderate to good yields.
Novel compounds of the following general formula:
wherein R is alkyl and R30 is hydrogen, or R and R30 taken together form a methylene moiety, and intermediates for their preparation.
通式如下的新型化合物: 其中 R 为烷基,R30 为氢,或 R 和 R30 共同形成亚甲基,以及用于制备它们的中间体。