Process for preparing heterocyclic substituted- phenoxyalkyl isoxazoles and-furans

Abstract From the Canadian patent

A process for preparing a compound of the formula I, is disclosed, characterized in that it comprises (a) reacting a compound of the formula wherein Hal is chlorine, bromine or iodine with an alkali, metal salt of a compound of the formula ; or, (b) to prepare a compound wherein Het is an aromatic type heterocyclic group, reacting a compound of the formula, V, where Hal' is bromine or iodine with a compound of the, formula, (R')3Sn-Het' where R' is lower-alkyl of 1-6 carbon atoms and Het' is any, of the aromatic type heterocyclic groups included in the definition of Het in the presence of a palladium complex catalyst;, (c) to prepare a compound wherein Het is a 4,5dihydro-lH-imidazolyl …