53007-52-6Relevant academic research and scientific papers
Synthesis and Rearrangement of 4-Imino-4H-3,1-benzoxazines
Mazurkiewicz, Roman
, p. 973 - 980 (1989)
N-Acylanthranilamides react with dibromotriphenylphosphorane in the presence of triethylamine as HBr captor to give 4-imino-4H-3,1-benzoxazines in good yields.If the reaction is carried out without acid acceptor, N-acetylanthranilamides yield 2-methyl-4-q
Amine-induced rearrangement of 4-imino-4H-3,1-benzoxazines to 4-quinazolinones via amidine carboxamides
Snider, Barry B.,Zeng, Hongbo
, p. 173 - 182 (2007/10/03)
Iminobenzoxazines (2) react with pyrrolidine in EtOAc at reflux to give amidine carboxamides (11), which cyclize to quinazolinones (3) on heating in 99:1 MeCN/HOAc. However, both amidines (11d) and (13d) are formed if R 1 = Ar and R2
