作者:Philip J. Smith、Zixuan Tong、Julia Ragus、Pearse Solon、Kirk W. Shimkin、Edward A. Anderson
DOI:10.1021/acs.orglett.2c02770
日期:2022.10.21
we report the Rh-catalyzed cyclotrimerization of alkynyl yndiamides with alkynes, the regiochemical outcome of which is controlled by the electronic properties of the alkyne partner, enabling the formation of 7-aminoindolines with excellent selectivity (up to >20:1 r.r.). We also report a complementary synthesis of bicyclic 1,2-dianiline derivatives by cyclotrimerization of yndiamides with terminal
炔二酰胺为合成邻位氮二取代芳族化合物和氮杂环化合物提供了机会。在此,我们报道了 Rh 催化的炔基炔二酰胺与炔的环三聚反应,其区域化学结果由炔烃伴侣的电子特性控制,从而能够以优异的选择性(高达 >20:1 rr)形成 7-氨基二氢吲哚。我们还报道了通过茚二酰胺与末端二炔的环三聚来互补合成双环1,2-二苯胺衍生物,其中二炔的缓慢添加克服了自二聚。