93501-05-4Relevant articles and documents
Reactions of N,3-diarylpropiolamides with arenes under superelectrophilic activation: Synthesis of 4,4-diaryl-3,4-dihydroquinolin-2(1H)-ones and their derivatives
Gurskaya, Larisa Yu.,Belyanskaya, Diana S.,Ryabukhin, Dmitry S.,Nilov, Denis I.,Boyarskaya, Irina A.,Vasilyev, Aleksander V.
, p. 950 - 956 (2016)
The reaction of 3-aryl-N-(aryl)propiolamides with arenes in TfOH at room temperature for 0.5 h led to 4,4-diaryl-3,4-dihydroquinolin-2-(1H)-ones in yields of 44-98%. The obtained dihydroquinolinones were further transformed into the corresponding N-acyl or N-formyl derivatives. For the latter, the superelectrophilic activation of the N-formyl group by TfOH in the reaction with benzene resulted in the formation of N-(diphenylmethyl)-substituted dihydroquinolinones.
A New Route for the Synthesis of Coumarins, Thiacoumarins and Carbostyrils
Natarajan, M.,Ramakrishnan, V. T.
, p. 720 - 727 (2007/10/02)
3-Arylcarbostyrils, coumarins and thiacoumarins (3) have been prepared from the respective β-aryl-α-bromodihydrocinnamoyl derivatives (2) by treatment with AlCl3.The β,β-diarylacrylic acid derivatives (4) and (9), obtained from 2, on reaction with AlCl3 afford 4-arylcarbostyrils (5) 6-methyl-4-phenylthiacoumarin (10) respectively.However the oxygen analogs (11) give 3,3-diphenyl-1-indanone (12)
