β-CD/ CuI催化在水中碘取代的1,2,3-三唑,咪唑并[1,2- a ]-吡啶和苯并咪唑并[2,1- b ]噻唑的区域选择性合成及其功能化
摘要:
已经开发出一种环境友好的方法,用于在水中CuI /β-CD催化的5-碘-1,4-二取代-1,2,3-三唑的区域选择性合成。而且,在水性介质中有效合成2-碘-咪唑并[1,2- a ]吡啶和2-碘-苯并咪唑并[ 2,1- b ]噻唑的方法被证明。另外,通过钯催化的偶联反应成功地修饰了碘化衍生物。该方法的显着特征是在温和的反应条件下原位形成1-碘炔烃和烷基/芳基叠氮化物,高区域选择性以及使用水作为绿色溶剂。
Mild and efficient oxy-iodination of alkynes and phenols with potassium iodide and tert-butyl hydroperoxide
作者:K. Rajender Reddy、M. Venkateshwar、C. Uma Maheswari、P. Santhosh Kumar
DOI:10.1016/j.tetlet.2010.02.074
日期:2010.4
An efficient synthesis of 1-iodoalkynes and iodophenols was easily achieved by employing simple KI and TBHP. The reaction does not involve the use of a metal and base combination. A variety of substituted alkynes and phenols were prepared with good to excellent yield. (c) 2010 Elsevier Ltd. All rights reserved.