2-Ethoxy-2-oxo-2H-2λ5-benzo[e][1,2]oxaphosphinine-3-carboxylic acid ethyl ester 以
氯仿 为溶剂,
反应 8.0h,
以8%的产率得到(6R,6aR,6bR,12R,12aS,12bS)-6,12-Diethoxy-6,12-dioxo-6bH,12bH-5,11-dioxa-6λ
5,12λ
5-diphospha-dibenzo[a,b]biphenylene-6a,12a-dicarboxylic acid diethyl ester