Iron-Catalyzed Synthesis of β-Chlorovinyl and α,β-Alkynyl Ketones from Terminal and Silylated Alkynes with Acid Chlorides
作者:Parthasarathy Gandeepan、Kanniyappan Parthasarathy、Tsu-Hui Su、Chien-Hong Cheng
DOI:10.1002/adsc.201100670
日期:2012.2
iron(III)-catalyzed synthesis of substituted β-chlorovinyl ketones and α,β-alkynyl ketones from terminal and silyl-substituted alkynes with acid chlorides, respectively, is described. This method features easily available starting materials, a cheap and non-toxic catalyst, simple manipulation and mild reaction conditions. Evidence shows that the catalytic addition of the acid chloride to a terminal alkyne
描述了一种简单的有效方法,用于铁(III)分别由酰基氯和末端甲硅烷基取代的炔烃进行铁(Ⅲ)合成取代的β-氯乙烯基酮和α,β-炔基酮的合成。该方法具有容易获得的起始原料,廉价且无毒的催化剂,简单的操作和温和的反应条件。有证据表明,将酰基氯催化加成至末端炔烃以生成(Z)-β-氯乙烯基酮,有助于通过两个炔烃碳与酸的碳氯化物键之间的四元环过渡态形成协调一致的途径。氯化物。