Synthesis of 1,5-diphenylpent-3-en-1-yne derivatives utilizing an aqueous B-alkyl Suzuki cross coupling reaction
作者:Da-Wei Chuang、Mohamed El-Shazly、Chin-Chau Chen、Yu-Ming Chung、Balaji D. Barve、Ming-Jung Wu、Fang-Rong Chang、Yang-Chang Wu
DOI:10.1016/j.tetlet.2013.07.020
日期:2013.9
1,5-Diphenylpent-3-en-1-yne derivatives were isolated in minor quantities from terrestrial plants and exhibited strong anti-inflammatory activity. A cross coupling reaction between B-benzyl-9-BBN and chloroenynes under mild condition was developed resulting in the formation of different 1,5-diphenylpent-3-en-1-yne derivatives with a full control on the E/Z selectivity. Several substrates bearing electron-donating
从陆生植物中少量分离出1,5-二苯基戊-3-烯-1-炔衍生物,并表现出很强的抗炎活性。在温和的条件下,B-苄基-9-BBN与亚氯炔之间发生了交叉偶联反应,导致形成了不同的1,5-二苯基五-3-烯-1-炔衍生物,并完全控制了E / Z。选择性。在反应条件下,几种带有给电子和吸电子取代基的底物是可以忍受的,从而以高收率提供了相应的产物。这是第一项报道合成大量新型1,5-二苯基戊-3-en-1-yne衍生物的研究,这为生物学研究和药物开发所必需的大规模制备量身定制的衍生物铺平了道路。