SYNTHESIS AND CYCLIZATION OF PHOSPHORYLATED β-ALLENIC AMINES
摘要:
Phosphorylated beta-allenic amines were obtained by aminophosphorylation of beta-allenic aldehydes and ketones. When treated by silver tetrafluoroborate in methylene chloride, they generated phosphorylated nitrogen cycles such as 1-pyrrolines and 1.2,3,6-tetrahydropyridines, with dephosphorylation of the latter tetrahydropyridines producing 3,6-dihydropyridines.