83570-66-5Relevant academic research and scientific papers
A Facile Synthesis of 1,3,4-Selenadiazoloquinazoline Derivatives via Japp-Klingemann Reaction
Abdelhamid, Abdou O.,Hassaneen, Hamdi M.,Shawali, Ahmad S.
, p. 719 - 721 (2007/10/02)
Diazotized anthranilic acid and its methyl ester react with ethyl α-selenocyanatoacetate 3a and α-selenocyanatoacetoacetanilide 3b to give in both cases the corresponding 1,3,4-selenadiazoloquinazoline derivatives 7a and 7b, respectively, in good y
FACILE SYNTHESIS OF THIADIAZOLO QUINAZOLINE DERIVATIVES VIA THE JAPP-KLINGEMANN REACTION
Abdelhamid, Abdou O.,Hassaneen, Hamdi M.,Abbas, Ikhlass M.,Shawali, Ahmad S.
, p. 1527 - 1530 (2007/10/02)
Diazotized anthranilic acid and its methyl ester react with substituted α-thiocyanatoacetoacetanilides 3a-c to give in both cases the corresponding thiadiazolo quinazolines 6a-c, respectively.A mechanism is proposed and it is substantiated by synthesis of 6a from N-(2-carboxyphenyl)-C-phenylcarbamoyl hydrazidoyl chloride 8a or its N-(2-methoxycarbonylcarbonylphenyl) analogue 8d.
