Carbon Tetrabromide/Sodium Triphenylphosphine-m-sulfonate (TPPMS) as an Efficient and Easily Recoverable Catalyst for Acetalization and Tetrahydropyranylation Reactions
作者:Congde Huo、Tak Hang Chan
DOI:10.1002/adsc.200900102
日期:——
A solid complex, conveniently prepared from carbontetrabromide and sodiumtriphenylphosphine-m-sulfonate (TPPMS), can be used as an easilyrecoverablecatalyst for the selective acetalization of aldehydes and tetrahydropyranylation of alcohols. The catalyst can be recovered by simple precipitation with ether and can be reused at least 7 times without loss of catalytic activity.