A novel [3+2] dipolar cycloaddition of methoxy(α,β-alkynyl)tungsten carbene complexes with 1,3-thiazolium-4-olates, synthetic equivalents of thiocarbonyl ylide affords methoxy(thienyl)tungsten carbene complexes or methoxy(pyridyl)tungsten carbene complexes depending on the electronic nature of a substituent at N-3 on the 1,3-thiazole nucleus.
                                    甲氧基(α,β-炔基)碳烯
钨配合物与1,3-
噻唑鎓-4-醇酸盐(
硫羰基
亚胺的合成等价物)的[3+2]偶极环加成反应,根据1,3-
噻唑核上N-3上取代基的电子性质,可得到甲氧基(
噻吩基)碳烯
钨配合物或甲氧基(
吡啶基)碳烯
钨配合物。