The anion formed from the lithiation of 1-[(methylthio)methyl]-1H-benzotriazole 1 with n-BuLi adds to heteroaryl ketones to give 2-benzotriazolyl alcohols 3a−m. Thermolysis of 3a−g in the presence of zinc bromide induces a 1,2-shift of heteroaromatic groups to form ketones 4a−g. By contrast, in the rearrangement of 2-benzotriazolyl alcohols 3h,i,k−m migration of the phenyl group rather than the corresponding
由1-[((甲
硫基)甲基] -1 H-苯并三唑1 ]与n- BuLi
锂化形成的阴离子加到杂芳基酮上,得到2-苯并三唑基醇3a - m。热分解图3a -克在
溴化锌诱导1,2-移杂芳基的形式来存在
酮类4A -克。相反,在重排2-苯并
三唑醇3H,我,ķ -米的苯基的迁移,而不是相应的杂芳基时发生,得到酮4H,我,k - m。