Heterocyclisations of 3-Trifluoroacetyl-lactams with Ethylenediamine and 2-Amino-ethanol
摘要:
Heterocyclisations of 3-trifluoroacetyl-lactams 1a-d with ethylenediamine and 2-amino-ethanol proceeded without opening of the lactam structure to give imidazolidines 2a-d and oxazolidine 6.