摘要:
The preparations of (Z)-alpha -phenoxymethylene-gamma -butyrolactone, alpha -phenoxymethyl-gamma -butyrolactone, (Z)-alpha -phenylthiomethylene-gamma -butyrolactone, and alpha -phenylthiomethyl-gamma -butyrolactone derivatives from 2-propynyloxy-benzene and 2-propynylthiobenzene were described.