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Visible-Light-Mediated Decarboxylative Tandem Carbocyclization of Acrylamide-Attached Alkylidenecyclopropanes: Access to Polycyclic Benzazepine Derivatives.
Organic Letters ( IF 4.9 ) Pub Date : 2020-06-17 , DOI: 10.1021/acs.orglett.0c01856
Xiao-Yu Zhang 1 , Chao Ning 1 , Yong-Jie Long 1 , Yin Wei 2 , Min Shi 1, 2
Affiliation  

A visible-light-mediated decarboxylative tandem carbocyclization of acrylamide-tethered alkylidenecyclopropanes with phenyliodine(III) diacetate and various aliphatic acids has been reported in this paper. An alkyl radical in situ generated from phenyliodine(III) dicarboxylates upon visible-light irradiation catalyzed by fac-Ir(ppy)3 adds to the less hindered central carbon of alkylidenecyclopropane to initiate the tandem annulation, generating tetracyclic benzazepine derivatives in moderate to good yields with broad substrate scope under mild conditions.

中文翻译:

可见光介导的丙烯酰胺连接的亚炔基环丙烷的脱羧串联碳环化反应:获得多环苯并ze庚因衍生物。

本文报道了可见光介导的丙烯酰胺系亚烷基环丙烷与双碘苯基碘(III)和各种脂肪酸的脱羧串联碳环化反应。由fac -Ir(ppy)3催化的可见光照射下,由二碘苯基甲酸三羧酸盐原位生成的烷基基团加到受阻较小的亚烷基环丙烷的中心碳上,以开始串联环化反应,以中等到良好的产率生成四环苯并ze庚因衍生物在温和条件下具有广泛的底物范围。
更新日期:2020-07-02
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