89221-27-2Relevant academic research and scientific papers
Synthesis of Polysubstituted 3-Methylisoquinolines through the 6π-Electron Cyclization/Elimination of 1-Azatrienes derived from 1,1-Dimethylhydrazine
Vargas, Didier F.,Larghi, Enrique L.,Kaufman, Teodoro S.
, p. 5605 - 5614 (2018/10/09)
A convenient one pot microwave-assisted 6π-electron cyclization/aromatization approach toward 3-methylisoquinolines is reported. The starting 1-azatriene derivatives were prepared in situ by reaction of 2-propenylbenzaldehydes with 1,1-dimethylhydrazine, which exhibited superior performance when compared with other hydrazine derivatives. Minor amounts of the related 3,4-dihydro isoquinolines were formed concomitantly with the isoquinolines, and a mechanism for their generation was proposed. The reaction conditions were optimized, and its scope and limitations were explored. In general, the transformation proceeded in moderate to good yields.
REACTION OF BENZYL KETONES WITH NITRILES IN PRESENCE OF POCl3
Zielinski, Wojciech
, p. 93 - 100 (2007/10/02)
The reaction of benzyl ketones with nitriles in presence of POCl3 has been examined.It has been found that intermediate N-styrylimidoyl dichlorophosphates formed under reaction conditions undergo further reactions to isoquinoline and pyrimidine derivatives and form the products of fragmentation and condensation.The effect of structure of the substrates on the relative ratios of the products formed has been discussed.
