Synthesis of cyclopropa[d]thiazolines by a novel and efficient photochemical rearrangement of 1,3-thiazines
Abstract
A novel and high yielding photochemical rearrangement has been used to convert the 1,3-thiazines 7 and 11 into the cyclopropa[d]thiazolines 10 and 12, respectively. Use of the substituted thiazine 13 in this reaction gave a high yield of the diastereoisomeric products 14 and 15.