1221171-91-0Relevant articles and documents
METHOD FOR THE PREPARATION OF FUNCTIONALIZED TRIHALOMETHOXY SUBSTITUTED PYRIDINES
-
Page/Page column 41-42, (2010/04/28)
The present invention pertains to a process for the preparation of functionalized trihalomethoxypyridines of formula (I) comprising reacting hydroxypyridines with thiophosgene in the presence of a base; reacting the obtained chlorothionoformiates with elemental chlorine and finally converting trichloromethoxy pyridines to trihalomethoxy pyridines using a fluoride source.