Copper(I)-Catalyzed Chemoselective Reduction of Benzofuran-2-yl Ketones to Alcohols with B<sub>2</sub>pin<sub>2</sub> via a Domino-Borylation-Protodeboronation Strategy
作者:Qingqing Xuan、Weiguang Kong、Qiuling Song
DOI:10.1021/acs.joc.7b00596
日期:2017.7.21
A novel copper(I)-catalyzed chemoselective reduction of the carbonyls of benzofuran-2-yl ketones over furan rings with B2pin2 has been developed. This reaction proceeded under mild conditions. High valuable secondary alcohol derivatives of benzofurans were obtained in good to excellent yields with a broad substrate scope. The mechanistic studies suggested that a domino-borylation-protodeboronation
Compounds of the formula (I)
1
as well as their pharmaceutically acceptable salts, and pharmaceutical compositions comprising the novel compounds. The novel compounds of the formula (I) are useful in the management of pain.
Novel diarylmethylpiperazine and diarylmethylphenyl compounds with analgesic effect
申请人:AstraZeneca AB
公开号:EP1408037A1
公开(公告)日:2004-04-14
Compounds of the formula (I)
as well as their pharmaceutically acceptable salts, and pharmaceutical compositions comprising the novel compounds. The novel compounds of the formula (I) are useful in the management of pain.