A new entry to [1,2,4]triazolo[1,5-a][1,4]benzodiazepin-6-onesvia intramolecular nitrilimine cycloaddition to the cyano group
摘要:
A series of [1.2.4]triazolo[1,5-a][1,4]benzodiazepin-6-ones of potential pharmacological interest have been synthesised by means of intramolecular nitrilimine cycloadditions to the cyano group. (C) 1998 Elsevier Science Ltd. All rights reserved.
Solvent-Free Synthesis of Novel Benzodiazepine Derivatives by a Three-Component Base-Catalysed Reaction of Isatoic Anhydride, a Primary Amine and Chloroacetyl Chloride
Heating isatoicanhydride with a series of primaryamines at 150 °C under solvent-free conditions yielded 2-amino-N-alkylbenzamides which, in the same pot, reacted readily with chloroacetyl chloride in the presence of poly(dimethylaminoethyl acrylamide)-modified magnetic nanoparticles (MNP@PDMA), a base catalyst, to give 4-alkyl-1,4-benzodiazepine-2,5-diones in good yields without formation of by-products
在无溶剂条件下,在 150 °C 下加热带一系列伯胺的靛红酸酐,生成 2-氨基-N-烷基苯甲酰胺,在聚(二甲氨基乙基丙烯酰胺)改性的磁性材料存在下,该化合物在同一个锅中很容易与氯乙酰氯反应。纳米颗粒 (MNP@PDMA),一种碱催化剂,以良好的产率得到 4-烷基-1,4-苯二氮卓-2,5-二酮,而不会形成副产物。