1535170-91-2Relevant articles and documents
POCl3-mediated synthesis of 2-N-arylimino-4-chloro-3- dichloromethylcoumarin and its conversion into 6H-[1]benzopyrano[4,3-b]quinolin- 6-one
Maiti, Sourav,Biswas, Pritam,Ghosh, Jaydip,Bandyopadhyay, Chandrakanta
, p. 1617 - 1623 (2014/01/17)
On heating in POCl3, 2-(N-aryl)aminochromone-3-carbaldehyde produced 2-N-arylimino-4-chloro-3-dichloromethylcoumarin, which undergoes selective acid-catalyzed hydrolysis of its imino function to produce 4-chioro-3-dichloromethylcoumarin. The hy