114106-65-9Relevant articles and documents
Regiospesific Arylation of 1,4-Benzoquinone Cyanohydrin Phosphate: Synthesis of 3-Aryl-4-hydroxybenzonitriles
Kurihara, Takushi,Harusawa, Shinya,Hirai, Jun-ichi,Yoneda, Ryuji
, p. 1771 - 1776 (2007/10/02)
Reaction of 1,4-benzoquinones (1a,b) with diethyl phosphorocyanidate and lithium cyanide was found to give the monocyanophosphates (2a,b).When catalysed by BF3*OEt2, the cyanophosphates (2a,b) reacted with aromatic and heteroaromatic compounds (indole, thiophene, and furan derivatives) to give 3-aryl-4-hydroxybenzonitriles.Under the same conditions ethyl 1-methylindole-2-carboxylate and 2,5-dimethylfuran were converted into 6-oxobenzopyranoindole-2-carbonitriles (15a,b) and benzofuran-5-carbonitriles (22a,b) by reaction with the cyanophosphates (2a,b), respectively.