(3+2) Cycloaddition of N-benzylazomethine methylide with 4-arylidene-1H-imidazol-5(4H)-ones
作者:Andrei V. Kuleshov、Pavel N. Solyev、Alexander D. Volodin、Аlexander А. Korlyukov、Mikhail S. Baranov、Andrey А. Mikhaylov
DOI:10.1007/s10593-020-02630-7
日期:2020.1
4-Arylidene-1H-imidazol-5(4H)-ones react with N-benzylazomethine methylide under trifluoroacetic acid catalysis to form 9-aryl-1,3,7- triazaspiro[4.4]non-1-en-4-ones in 66–95% yields as one diastereomer in each case.