Wl. Bao et Ym. Zhang, 6 MEMBERED RING-OPENING OF ISOPROPYLIDENE MALONATE DERIVATIVES - SYNTHESIS OF ALPHA,BETA-UNSATURATED THIOARYL AND SELENOARYL CARBOXYLIC ESTERS, Synthetic communications, 25(2), 1995, pp. 143-148
Six membered rings of isopropylidene malonate derivatives were opened
by aryl thiolate anions and aryl selenolate anions which were produced
through reductive cleavage of diaryl disulfides and diaryl diselenide
s with SmI2, and the substituted propenoic acid selenoaryl and thioary
l esters were synthesized.