Mizoroki–Heck Reaction of Unstrained Aryl Ketones via Ligand-Promoted C–C Bond Olefination
作者:Mei-Ling Wang、Hui Xu、Han-Yuan Li、Biao Ma、Zhen-Yu Wang、Xing Wang、Hui-Xiong Dai
DOI:10.1021/acs.orglett.1c00296
日期:2021.3.19
Mizoroki–Heck reaction of unstrained arylketone with acrylate/styrene is accomplished via palladium-catalyzed ligand-promoted C–C bond cleavage. Various (hetero)arylketones are compatible in the reaction, affording the alkene product in good to excellent yields. Further applications in the late-stage olefination of some drugs, natural products, and fragrance-derived arylketones demonstrate the synthetic utility
The present invention relates to a process for the arylation of olefins by reaction of haloaromatics or arylsulfonates with olefins in the presence of a palladium catalyst, a bulky nitrogen base and a salt.
PYRROLE DERIVATIVES HAVING CRTH2 RECEPTOR ANTAGONIST ACTIVITY
申请人:Adcock Claire
公开号:US20100087432A1
公开(公告)日:2010-04-08
There are provided according to the invention compounds of formula (I) as CRTh2 antagonists. In free or salt form, wherein R
3
, R
4
, R
5
, R
6
, Q, W and n are as described in the specification, process for preparing them, and their use as pharmaceuticals.