Kumar Amrendra, Tadigoppula Narender
Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226 031, India.
Org Lett. 2021 Jan 1;23(1):8-12. doi: 10.1021/acs.orglett.0c02793. Epub 2020 Dec 22.
A one-pot transformation has been developed for the synthesis of unprotected and highly substituted indoles by an installed carbamide-directed Ru(II)-catalyzed intermolecular oxidative annulation of phenyl isocyanates with diaryl/diheteroaryl alkynes/ethyl phenyl propiolates in the presence of Cu(OAc)·HO as an oxidant and AgSbF as an additive at 120 °C within 3 h.
已开发出一种一锅法转化方法,用于在120℃下,以Cu(OAc)₂·H₂O作为氧化剂和AgSbF₆作为添加剂,通过已安装的脲导向的Ru(II)催化苯基异氰酸酯与二芳基/二杂芳基炔烃/苯基丙炔酸乙酯的分子间氧化环化反应,合成未保护的高度取代吲哚,反应在3小时内完成。