INTERACTION OF 1,1,3,3-TETRAMETHYLGUANIDINE WITH 3-ACYL-4<i>Н</i>-CHROMENES
DOI:
https://doi.org/10.1007/3357Keywords:
1, 3, 3-tetramethylguanidine, electron-deficient 4Н-chromenes, push-pull 2-aza-1, 3-dienes, Michael reactionAbstract
A series of substituted 2-(3-oxoprop-1-en-1-yl)guanidines was obtained via the interaction of 1,1,3,3-tetramethylguanidine with fused 4Н-pyrans, containing a carbonyl group in the β-position to the oxygen atom. The proposed reaction mechanism includes a conjugate 1,4-addition with subsequent opening of the dihydropyran ring.
Authors: Vitaly A. Osyanin*, Yulia V. Popova, Dmitry V. Osipov, Yuri N. Klimochkin