Novel and chemoselective one-pot synthesis of 4-arylidene-2-phenyl-5(4H)-oxazolones starting from benzyl alcohols promoted by [(C14H24N4)2W10O32]-[bmim]NO3
AbstractA new and practical promoter system for one-pot, efficient, chemoselectivesynthesis of 4-arylidene-2-phenyl-5(4H)-oxazolones using [(C14H24N4)2W10O32]-[bmim]NO3 under solvent-free conditions is described. The present work opens up a new and ecofriendly synthetic route to Erlenmeyer–Plöchl adductsfrom primary benzyl alcohols in a one-pot operation. Graphical abstract
摘要一种新型实用的促进剂体系,可使用[(C 14 H 24 N 4)2 W 10 O 32 ]-[bmim进行一锅高效化学选择合成4-亚芳基-2-苯基-5(4 H)-恶唑酮描述了在无溶剂条件下的] NO 3。目前的工作为一锅操作从伯苄醇到Erlenmeyer-Plöchl加合物的合成开辟了一条新的环保途径。 图形概要
A facile synthesis of 2-alkyl-3-α-carboxy-α-styryl/heterylvinyl quinazolin-4(3H)-ones and 3-arylidene/heterylmethylidene-4-aroyl-1H-[1,4]benzodiazepine-2,5(3H,4H)-diones and their transformation into novel heterocyclyl and heterocyclo analogues
作者:Poonam Gupta、Archana Sharma、R. L. Sharma
DOI:10.1002/jhet.756
日期:2012.1
formation of two entirely different heterocyclic systems, differently substituted quinazoline compounds, 2‐methyl‐/2‐ethyl‐3‐α‐carboxy‐α‐styryl‐/β‐heteryl‐α‐carboxyvinyl‐quinazolin‐4(3H)‐ones 3a–3e and 3′a–3′e and differently substituted 1,4‐benzodiazepine compounds, 3‐arylidene‐/heteryl methylidene‐4‐aroyl‐1H‐[1,4]benzodiazepine‐2,5(3H,4H)‐diones 7a–7e and 7′a–7′e. Compounds 3a–3e and 3′a–3′e have been converted