Bromo-poly:fluoro alkyl phenyl ether(s) - intermediates for pharmaceuticals and plant protection agents are prepd. by reacting the phenate with di:bromo-poly:fluoro-methane or ethane

摘要

Bromo-polyfluoro-alkyl ethers of formula R-substd.-phenyl- O-(CF2)n-Br (I) are new (where n is 1 or 2; R is one or more gps. chosen from H, 1-12C alkyl, phenyl, 1-12C alkoxy, phenoxy, NO2, CN, halo, CF3, -CONR1R2 and -NR1R2 and R1, R2 are H or 1-6C alkyl). (I) are intermediates for the prepn. of plant protection agents and pharmaceuticals, esp. by halogen exchange to form the perfluoroalkyl ether intermediates.