2-[2,4-dichloro-5-(2-propynyloxy)phenyl]-2,4-dihydro-5-(3-oxo-propyl)-3H-1,2,4-triazol-3-one 在
diethylaminosulfur trifluoride 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
生成 2,5,6,7-tetrahydro-2-[2,4-dichloro-(2-propynyloxy)phenyl]-5-fluoro-3H-pyrrolo[2,1-c]-1,2,4-triazol-3-one 、 2-[2,4-dichloro-5-(2-propynyloxy)phenyl]-2,4-dihydro-5-(3,3-difluoropropyl)-3H-1,2,4-triazol-3-one