Iron(iii) catalysed synthesis of unsymmetrical di and trisubstituted ureas – a variation of classical Ritter reaction
作者:Hosamani Basavaprabhu、Vommina V. Sureshbabu
DOI:10.1039/c2ob06916d
日期:——
An application of the classical Ritter reaction for the synthesis of unsymmetrical di and trisubstituted ureas catalyzed by FeCl3 is described. The protocol is of significant interest in view of the easy availability of precursors, mild reaction conditions employed and interestingly its applicability for the alkylation of alcohols capable of forming stable carbocationic intermediates even to the sterically hindered moieties.
介绍了利用经典Ritter反应合成非对称二取代和三取代脲类化合物的方法,该反应由FeCl3催化。该方案具有重要意义,因为其前体易于获得,反应条件温和,而且在对能够形成稳定碳正离子中间体的醇进行烷基化时,即使是空间位阻较大的基团也能适用。