Investigation of Prins reaction for the synthesis of 2, 4-disubstituted tetrahydropyran derivatives and 1, 3-dioxanes using polyaniline supported acid as reusable …
KJ Borah, R Borah
文献索引：Borah, Kalyan Jyoti; Borah, Ruli Journal of Chemical Sciences, 2011 , vol. 123, # 5 p. 623 - 630
Abstract The Prins cyclization of homoallyl alcohol with a variety of aldehydes were observed under reflux condition in dichloromethane using both polyaniline supported TsOH (PANI-TsOH) and FeCl 3 (PANI-FeCl 3) as reusable acid catalysts with the formation of 2, 4- disubstituted tetrahydropyran ether as single product. In case of 4-, 3-and 2-nitro benzaldehydes, the reaction generated acetal of the aldehyde and homoallylic alcohol as ...
