作者:Joel M. Smith、Tian Qin、Rohan R. Merchant、Jacob T. Edwards、Lara R. Malins、Zhiqing Liu、Guanda Che、Zichao Shen、Scott A. Shaw、Martin D. Eastgate、Phil S. Baran
DOI:10.1002/anie.201705107
日期:2017.9.18
The development of a new decarboxylative cross‐coupling method that affords terminal and substituted alkynes from various carboxylic acids is described using both nickel‐ and iron‐based catalysts. The use of N‐hydroxytetrachlorophthalimide (TCNHPI) esters is crucial to the success of the transformation, and the reaction is amenable to in situ carboxylic acid activation. Additionally, an inexpensive
描述了使用镍基和铁基催化剂的新型脱羧交叉偶联方法的开发,该方法可从各种羧酸中获得末端炔烃和取代炔烃。使用N-羟基四氯邻苯二甲酰亚胺(TCNHPI)酯对于成功转化至关重要,并且该反应适合原位羧酸活化。此外,在这种正式的同源过程中,使用了一种廉价的,可商购的炔烃来源,作为其他公认的炔烃合成的替代品。该反应操作简单,适用范围广,同时为先前报道的合成中间体提供了简洁,可扩展的途径。