Microwave-Assisted Rapid andSelective Synthesis of<i>cis</i>- and<i>trans</i>-2,4,5-Triarylimidazolinesfrom Aromatic Aldehydes
作者:Takeshi Toru、Hitoshi Uchida、Hirofumi Tanikoshi、Shuichi Nakamura、Paidi Yella Reddy
DOI:10.1055/s-2003-39906
日期:——
Microwave irradiation of a mixture of aromatic aldehydes and hexamethyldisilazane in the presence of a solid catalyst such as alumina afforded methanediamines which were efficiently converted to either cis- or trans-2,4,5-triarylimidazolines depending on the base used. A one-pot selective synthesis of cis- and transimidazolines from aromatic aldehydes was achieved under microwave irradiation.
在固体催化剂(如氧化铝)存在下对芳香醛和六甲基二硅氮烷的混合物进行微波照射,得到甲二胺,根据所使用的碱,该甲二胺可有效转化为顺式或反式 2,4,5-三芳基咪唑啉。在微波辐射下实现了从芳香醛中一锅选择性合成顺式和反式咪唑啉。