- Synthesis of Halogenated Pyridines via the CuCl-Catalyzed Addition of Polyhaloacetonitriles to Olefins
-
Halogenated acetonitriles add smoothly to acrolein, methacrolein, and methacrolein dimethyl acetal in the presence of a catalytic amount of CuCl and triphenylphosphine, tri-n-butylphosphine, or triethylamine to give halogenated difunctional adducts.The adducts have been cyclized in high yields under acidic conditions to halogenated pyridines.
- Pews, R. Garth,Lysenko, Zenon
-
p. 5115 - 5119
(2007/10/02)
-
- Halonitriles, their preparation and use to make halopyridines
-
Novel halonitriles, e.g., 2,4-dichloro-2-fluoro-5,5-dimethoxy-4-methylpentanenitrile, method of preparation and use to make halopyridines, some of which are novel, e.g., 2-chloro-3-fluoro-5-methylpyridine. These compounds are intermediates in the preparation of pharmaceutical and agricultural products.
- -
-
-
