115783-01-2Relevant academic research and scientific papers
EFFICIENT ENZYMATIC CYCLIZATION OF 2-(CARBAMOYLOXY)- AND 2-(SULFAMOYLOXY)BENZONITRILES BY ULTRASONICALLY STIMULATED BAKER'S YAEST
Kamal, Ahmed,Rao, Maddamsetty V.,Rao, Adari B.
, p. 577 - 579 (2007/10/02)
An approach to the synthesis of 4-imino substituted 1,3-benzoxazin-2-ones, 1,2,3-benzoxathiazin-2-ones and 2-quinazolinones based on the enzymatic cyclization of the labile-functionalized compounds with ultrasonically stimuled baker's yeast.
AN EFFICIENT SYNTHESIS OF 3,4-DIHYDRO-4-IMINO-2(1H)-QUINAZOLINONES
Reddy, A. V. Narender,Kamal, Ahmed,Sattur, P. B.
, p. 525 - 530 (2007/10/02)
A new one-pot convenient preparation of 3,4-dihydro-4-imino-2(1H)-quinazolinones (4) is described by the reaction of 2-aminobenzonitriles (1) with chlorosulfonyl isocyanate (2), while the reaction of 1 with chlorocarbonyl isocyanate (6) affords ureidobenzonitriles (7), which on thermal cyclization gives 4.
