A convenient synthesis of functionalized N-(ethynyl)benzotriazoles
摘要:
1-(2,2-Dichlorovinyl)benzotriazole (7) was prepared by the reaction of 1-formylbenzotriazole with PPh3/CCl4. Lithiation substitution of 7 with electrophiles gave a variety of functionalized N-(ethynyl)benzotriazoles 8a-h in 32-84% yields. (c) 2006 Elsevier Ltd. All rights reserved.
A convenient synthesis of functionalized N-(ethynyl)benzotriazoles
摘要:
1-(2,2-Dichlorovinyl)benzotriazole (7) was prepared by the reaction of 1-formylbenzotriazole with PPh3/CCl4. Lithiation substitution of 7 with electrophiles gave a variety of functionalized N-(ethynyl)benzotriazoles 8a-h in 32-84% yields. (c) 2006 Elsevier Ltd. All rights reserved.