S. Kohra, K. Ueda, Y. Tominaga
Feb 15, 1995
Citations
0
Influential Citations
3
Citations
Journal
Chemical & Pharmaceutical Bulletin
Abstract
Reaction of 1-methyl-2-[methylthio(trimethylsilylmethylimino)methylimino]-1, 2-dihydropyridine (1), prepared from 2-amino-1-methyl-pyridinium iodide in 3 steps, with carbonyl compounds in the presence of 2 eq of cesium fluoride in acetonitrile afforded 2-(1-methyl-1, 2-dihydropyridylidene)aminooxazoline derivatives (12), which correspond to formal [3+2] cycloadducts of the aminonitrile ylid. Further, compound 1 reacted with carbonyl compounds in the presence of a catalytic amount of tetra-n-butylammonium fluoride (TBAF) to give corresponding cycloadducts.