Cross metathesis of allyl alcohols: how to suppress and how to promote double bond isomerization
作者:Bernd Schmidt、Sylvia Hauke
DOI:10.1039/c3ob40167g
日期:——
formation of ketones, resulting from uncontrolled and undesired double bond isomerization. By conducting the CM in the presence of phenol, the catalyst loading and the reaction time required for quantiative conversion can be reduced, and isomerization can be suppressed. On the other hand, consecutive isomerization can be deliberately promoted by evaporating excess methyl acrylate after completing cross
在标准条件下,烯丙醇和 丙烯酸甲酯伴随着由于不受控制和不希望的双键异构化导致的酮的形成。通过在以下人员在场的情况下执行CM苯酚,可以减少定量转化所需的催化剂载量和反应时间,并且可以抑制异构化。另一方面,通过过量蒸发可以有意地促进连续的异构化。丙烯酸甲酯 完成交叉复分解后,并添加碱或硅烷作为化学触发剂。