75220-79-0Relevant articles and documents
[BPy]HSO4 acidic ionic liquid as a novel, efficient, and environmentally benign catalyst for synthesis of 1,5-benzodiazepines under mild conditions
Du, Yuying,Tian, Fuli,Zhao, Wenzhi
, p. 1661 - 1669 (2007/10/03)
A novel and simple ionic liquid methodology for the synthesis of 1,5-benzodiazepines is described. 1-Butylpyridinium hydrogen sulphate ([BPy]HSO4), an acidic room-temperature ionic liquid, as a novel and efficient catalyst, was synthesized and
One-pot syntheses of dihydro benzo[b][1,4]thiazepines and -diazepines via coupling-isomerization-cyclocondensation sequences
Braun, Roland U.,Müller, Thomas J.J.
, p. 9463 - 9469 (2007/10/03)
2,4-Di(hetero)aryl substituted 2,3-dihydro benzo[b][1,4]heteroazepines 7 and 9 (hetero=S, NH) can be readily synthesized in a one-pot process initiated by a coupling-isomerization sequence of an electron poor (hetero)aryl halide 4 and a terminal propargyl alcohol 5 subsequently followed by a cyclocondensation with 2-mercapto or 2-amino anilines 6 or 8, respectively. In addition, the structures were established unambiguously by an X-ray structure analysis of 9b. Graphical abstract.
NEW ASPECTS OF THE CHEMISTRY OF 2,3-DIHYDRO-1H-1,5-BENZODIAZEPINE
Orlov, V. D.,Kolos, N. N.,Yaremenko, F. G.,Lavrushin, V. F.
, p. 547 - 550 (2007/10/02)
Under basic catalysis conditions the reaction of 4- and 4'-substituted chalcones with o-phenylenediamine leads to 2,3-dihydro-2,4-diaryl-1H-1,5-benzodiazepines; β-amino adducts, the ability of which to undergo intramolecular condensation increases as the
