Reaction of 2-azathiabenzenes with dimethyl acetylenedicarboxylate; X-ray structure of a 1λ4,4-thiazocine
Abstract
The azathiabenzene derivatives (1) react at room temperature with dimethyl acetylenedicarboxylate in aprotic solvents to give 1λ4,4-thiazocines (2) and in protic solvents to give the 2:1-adduct (6) in a new sulphimide reaction.