(E)-6-carbomethoxy-3,4-dihydro-1(2H)-naphthalenylideneacetic acid 1,1-dimethylethyl ester 在
sodium thiophenolate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
以74%的产率得到(E)-6-carboxy-3,4-dihydro-1(2H)-naphthalenylideneacetic acid 1,1,-dimethylethyl ester sodium salt