Conjugate Additions of Amines to Maleimides via Cooperative Catalysis
作者:Brice E. Uno、Kristine K. Deibler、Carlos Villa、Arjun Raghuraman、Karl A. Scheidt
DOI:10.1002/adsc.201800160
日期:2018.4.17
A cooperative system comprising of a lithium Lewis acid and amine base significantly enhances the rate of the conjugateaddition of a wide array of amines to maleimides. This operationally simple, scalable method provides mono‐addition products in high yields and purity. This conjugation was successfully applied to the kinase inhibitor crizotinib in a chemoselective ligation to create novel fluorescent