Polymer Supported Reagents: Facile Synthesis of β-Oxalkyl (Acetonyl) Esters of Carboxylic Acids.
摘要:
beta-Oxoalkyl (acetonyl) esters have been synthesised in high yields and in a state of purity by reaction of chloroacetone with insoluble polymer supported carboxylate ions at room temperature.
Abstract The 1,2-dibromoethane- and KI-mediated α-acyloxylation of ketones is reported in moderate to good yield without the use of transition metals and strong oxidants. Various acids are well tolerated with wide functional group compatibility. An 1,2-dibromoethane- and KI-catalysed reaction mechanism is proposed based on the results of control experiments.