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- W2149195536 abstract "In an attempt to acylate 2,4-diaryl-2,3-dihydro-1H-1,5-benzodiazepines using succinic anhydride, Orlov et al. [1] discovered a rearrangement to give 3-(1H-benzimidazol-2-yl)propionic acid 2. We have found that heating equimolar amounts of succinic anhydride and 2-methyl-2,4-diphenyl-2,3dihydro-1H-1,5-benzodiazepine (3), obtained by Orlov [2] by the reaction of two equivalents of acetophenone with o-phenylenediamine in toluene at reflux for 2 h in the presence of potassium carbonate leads to 4-(2-methyl-2,4-diphenyl-2,5-dihydro-1H-1,5-benzodiazepin-5-yl)-4-oxobutanoic acid 4 in 70% yield." @default.
- W2149195536 created "2016-06-24" @default.
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- W2149195536 date "2003-11-11" @default.
- W2149195536 modified "2023-09-27" @default.
- W2149195536 title "Acylation of 2-Methyl-2,4-diphenyl-2,5-dihydro-1H-1,5-benzodiazepine by Succinic Anhydride." @default.
- W2149195536 cites W2950488042 @default.
- W2149195536 doi "https://doi.org/10.1002/chin.200345143" @default.
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