Addition of a Silyl Ketene Acetal to α,β-Unsaturated Cyclic Anhydrides
作者:Rudhramyna Gnaneshwar、Swaminathan Sivaram
DOI:10.1080/00397910903243815
日期:2010.7.27
Addition of [1-methoxy-2 methyl-1-propenyl)-oxy] trimethylsilane (MTS) to unsymmetrical α,β-unsaturated cyclic anhydrides (namely, itaconic anhydride and citraconic anhydride) as well as symmetrical anhydrides (namely, maleic anhydride and 2,3-dimethylmaleic anhydride) was investigated. Itaconic anhydride isomerizes to citraconic anhydride in the presence of MTS. In the presence of Lewis acid catalysts