作者:V. D. Vitnik、M. D. Ivanović、Ž. J. Vitnik、J. B. Đorđević、Ž. S. Žižak、Z. D. Juranić、I. O. Juranić
DOI:10.1080/00397910802531955
日期:2009.3.25
Phase-transfer-catalyzed (PTC) reactions of ketones with bromoform and aqueous lithium hydroxide in alcoholic solvent result in the formation of α,β-unsaturated carboxylic acids. The reaction was performed at room temperature for 24 h. The corresponding conjugated acids were obtained from cyclic or aromatic ketones, whereas bromo acids were obtained from 4-oxo-piperidine-1-carboxylic acid ethyl ester (13) and 4-oxo
摘要 酮与溴仿和氢氧化锂在醇溶剂中的相转移催化 (PTC) 反应导致形成 α,β-不饱和羧酸。反应在室温下进行24小时。相应的共轭酸是从环状或芳香酮中获得的,而溴酸是从 4-氧代-哌啶-1-羧酸乙酯 (13) 和 4-氧代-哌啶-1-羧酸叔丁酯 (14 )。