[EN] TRISUBSTITUTED 3,4-DIHYDRO-1H-ISOQUINOLIN COMPOUND, PROCESS FOR ITS PREPARATION, AND ITS USE<br/>[FR] COMPOSÉ 3,4-DIHYDRO-1H-ISOQUINOLÉINE TRISUBSTITUÉE, MÉTHODE DE PRÉPARATION, ET SON UTILISATION
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2009083903A1
公开(公告)日:2009-07-09
The present invention relates to the compound of formula (7*)acetate (see below), a process for its preparation, and its use.
这项发明涉及到式(7*)醋酸盐(见下文)的化合物,以及其制备方法和用途。
TRISUBSTITUTED 3,4-DIHYDRO-1H-ISOQUINOLIN COMPOUND, PROCESS FOR ITS PREPARATION, AND ITS USE
申请人:De Vries Maria Andreas Hendrikus
公开号:US20100010226A1
公开(公告)日:2010-01-14
The present invention relates to the compound of formula 7*acetate (see below), a process for its preparation, and its use
本发明涉及式7*醋酸盐(见下文)的化合物,其制备方法以及其用途
Enantioselective Desymmetrization of Bisphenol Derivatives via Ir-Catalyzed Allylic Dearomatization
作者:Ye Wang、Wen-Yun Zhang、Jia-Hao Xie、Zong-Lun Yu、Jia-Hao Tan、Chao Zheng、Xue-Long Hou、Shu-Li You
DOI:10.1021/jacs.0c09638
日期:2020.11.11
99% ee). The high efficiency of this reaction is exemplified by the short reaction time (30 min), low catalyst loading (down to 0.2 mol %), and ability to perform the reaction on a gram-scale. The total syntheses of (+)-tatanan B and (+)-tatanan C were also realized using this Ir-catalyzed allylic dearomatization reaction as a keystep.
天然产物中经常发现具有多个立体中心的螺环己二烯酮,但合成目标仍然具有挑战性。在此,我们报告了通过 Ir 催化的烯丙基脱芳构化反应对双酚衍生物进行对映选择性去对称化,以良好的产率(高达 90%)和出色的对映选择性(高达 99% ee)提供具有多达三个连续立体中心的螺环己二烯酮衍生物。该反应的高效率体现在反应时间短(30 分钟)、催化剂负载量低(低至 0.2 mol%)以及以克规模进行反应的能力。(+)-tatanan B 和 (+)-tatanan C 的全合成也是使用这种 Ir 催化的烯丙基脱芳构化反应作为关键步骤来实现的。
PROCESS FOR THE PREPARATION OF AN ENANTIOMERIC TRISUBSTITUTED 3,4-DIHYDRO-ISOQUINOLINE DERIVATIVE
申请人:Bappert Erhard
公开号:US20100305325A1
公开(公告)日:2010-12-02
The present invention relates to a process for the preparation of the compound of formula (7) which process comprises the hydrogenation of the compound of formula (4) using bis[chloro-1,5-cyclooctadiene-iridium], (S)-i-dicyclohexylphosphino-2-[(S)-α-(dimethylamino)-2-(dicyclohexylphosphino)benzyl]-ferrocene as a catalyst.
PHOSPHORAMIDITE LIGAND AND PRODUCTION METHOD OF ALLYLIC AMINE USING THE SAME
申请人:CARREIRA Erick M.
公开号:US20090054689A1
公开(公告)日:2009-02-26
The present invention provides a production method of an allylic amine represented by the formula (III):
wherein R
3
is as defined in the specification,
which comprises reacting by an allylic alcohol represented by the formula (II):
wherein R
3
is as defined in the specification,
with sulfamic acid, in the presence of a phosphoramidite ligand represented by the formula (I):
wherein each symbol is as defined in the specification, and an iridium complex. According to the present invention, a primary allylic amine can be produced directly from an allylic alcohol, without use of an activator for an allylic alcohol and conversion of an allylic alcohol into an activated compound thereof.