Copper‐Catalyzed Photoinduced [3+3] Cycloaddition Reactions of α‐Acidic Isocyanides with Tetrazoles
作者:Hua‐Wei Liu、Yong‐Jiu Hao、Zhong‐Jian Cai、Shun‐Jun Ji
DOI:10.1002/adsc.202300598
日期:2023.11.7
photoinduced [3+3] cycloaddition reaction of α-acidic isocyanides with 2,5-diaryltetrazoles is described. The reaction proceeded smoothly with high regioselectivity, affording a range of important 1,2,4-triazines under mild conditions. The obtained 1,2,4-triazines were converted into triazine alcohol, Weinreb amide and triazinone easily, which further illustrate the utility of this [3+3] cycloaddition
在此,描述了α-酸性异氰化物与2,5-二芳基四唑的铜催化光致[3+3]环加成反应。反应顺利进行,具有高区域选择性,在温和条件下得到了一系列重要的1,2,4-三嗪。所得1,2,4-三嗪很容易转化为三嗪醇、Weinreb酰胺和三嗪酮,这进一步说明了这种[3+3]环加成工艺的实用性。