Catalyst‐Free Synthesis of α‐Functionalized 2
<i>H</i>
‐Chromenes in Water: A Tandem Self‐Promoted
<i>pseudo</i>
‐Substitution and Decarboxylation Process
作者:Chunhui Jiang、Yayun Chen、Hongkui Zhang、Jian‐Ping Tan、Tianli Wang
DOI:10.1002/asia.201900641
日期:2019.9.2
protocol was also demonstrated by the scale-up synthesis and versatile conversions of the title product into other useful compounds. In addition, control experiments indicated that water was essential for the reactivity. Mechanistic studies further revealed that the reaction proceeded through a self-promoted tandem pseudo-substitution and decarboxylation process.
Biomimetic catalytic enantioselective decarboxylative aldol reaction of β-ketoacids with trifluoromethyl ketones
作者:Yan Zheng、Heng-Ying Xiong、Jing Nie、Ming-Qing Hua、Jun-An Ma
DOI:10.1039/c2cc30949a
日期:——
We disclose an organocatalyzed enantioselective decarboxylative ketone aldol reaction of β-ketoacids with trifluoromethyl ketones in the presence of biscinchona alkaloid (DHQD)2AQN, affording chiral tertiary alcohols in up to 98% yield and 90% ee.
NOUVEAUX DERIVES D'INDOLE ET DE PYRROLE, LEUR PROCEDE DE PREPARATION ET LES COMPOSITIONS PHARMACEUTIQUES QUI LES CONTIENNENT
申请人:Les Laboratoires Servier
公开号:EP3027602A1
公开(公告)日:2016-06-08
[EN] NOVEL DERIVATIVES OF INDOLE AND PYRROLE, METHOD FOR THE PRODUCTION THEREOF AND PHARMACEUTICAL COMPOSITIONS CONTAINING SAME<br/>[FR] NOUVEAUX DERIVES D'INDOLE ET DE PYRROLE, LEUR PROCEDE DE PREPARATION ET LES COMPOSITIONS PHARMACEUTIQUES QUI LES CONTIENNENT
申请人:SERVIER LAB
公开号:WO2015011396A1
公开(公告)日:2015-01-29
Composés de formule (I) dans laquelle Ra, Rb, Rc, Rd, R3, R4, R5, A1, A2,T et W sont tels que définis dans la description. Médicaments.