Synthesis of Dihydro-3,1-benzoxazine Derivatives from 1,3-Amino Alcohols and <i>N</i>-Sulfonyl-1,2,3-triazole
作者:Kavuri Rupa、Dongari Yadagiri、Ratnam Bagavathi、Pazhamalai Anbarasan
DOI:10.1021/acs.orglett.3c00851
日期:2023.5.19
derivatives has been accomplished from aniline-derived 1,3-amino alcohols and N-sulfonyl-1,2,3-triazole. The developed reaction demonstrates the new reactivity of azavinyl carbenes and allows access to diverse substituted dihydro-3,1-benzoxazines in good yields. Importantly, the reaction was readily extended to diols and could be used for selective protection of amino alcohols with N-sulfonyl-1,2,3-triazole
已从苯胺衍生的 1,3-氨基醇和N -磺酰基-1,2,3-三唑完成了二氢-3,1-苯并恶嗪衍生物的有效铑催化合成。开发的反应展示了氮杂乙烯基卡宾的新反应性,并允许以良好的收率获得多种取代的二氢-3,1-苯并恶嗪。重要的是,该反应很容易扩展到二醇,并可用于以N-磺酰基-1,2,3-三唑作为保护剂选择性保护氨基醇。