Rare-Earth Y(OTf)3 Catalyzed Coupling Reaction of Ethers with Azaarenes
摘要:
Rare-earth catalysis has become a hot topic in the field of catalytic organic reaction. Chain ethers mostly have lower reactivity and lower boiling points which limited their reaction scope. Herein, we found a rare-earth Y(OTf)(3) can catalyze the coupling reaction of ethers especially chain ethers and thioethers with azaarenes. This protocol features simple operations, a broad substrate scope (31 examples), moderate to good yields (up to 85%), and atom economy.
DIMETHOXYPHENYL SUBSTITUTED INDOLE COMPOUNDS AS TLR7, TLR8 OR TLR9 INHIBITORS
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20210292300A1
公开(公告)日:2021-09-23
Disclosed are compounds of Formula (I) or a salt thereof, wherein R
1
; R
3
, R
4
, R
5
, m, and n are defined herein. Also disclosed are methods of using such compounds as inhibitors of signaling through Toll-like receptor 7, or 8, or 9, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating inflammatory and autoimmune diseases.
Rare-Earth Y(OTf)<sub>3</sub> Catalyzed Coupling Reaction of Ethers with Azaarenes
作者:Yue-Hua Wu、Nai-Xing Wang、Tong Zhang、Lei-Yang Zhang、Xue-Wang Gao、Bao-Cai Xu、Yalan Xing、Jian-Yi Chi
DOI:10.1021/acs.orglett.9b02763
日期:2019.9.20
Rare-earth catalysis has become a hot topic in the field of catalytic organic reaction. Chain ethers mostly have lower reactivity and lower boiling points which limited their reaction scope. Herein, we found a rare-earth Y(OTf)(3) can catalyze the coupling reaction of ethers especially chain ethers and thioethers with azaarenes. This protocol features simple operations, a broad substrate scope (31 examples), moderate to good yields (up to 85%), and atom economy.