Triethylamine-Catalyzed Efficient Synthesis of Oxathiolanes Containing a Highly Polarized Carbon-Carbon Double Bond from Reaction of Malononitrile, Carbon Disulfide (CS2), and Oxiranes
An efficientsynthesis of functionalized 2‐(1,3‐oxathiolan‐2‐ylidene)malononitrilescontaining a push‐pull CC bond via a simple reaction between malononitrile, CS2, and oxiranes in the presence of Et3N is described (Scheme 1).