multiple stereocenters from the same set of starting materials. We report herein the first diastereodivergent [3+2] annulation of aromatic aldimines with alkenes via C-H activation by half-sandwich rare-earth catalysts. This protocol provides an efficient and general route for the selective synthesis of both trans and cis diastereoisomers of multi-substituted 1-aminoindanes from the same set of aldimines
The catalyticasymmetric construction of silicon‐stereogenic silanes is of great interest and significance, but has met with only limited success to date. We herein report the enantioselective hydrosilylation of alkenes with dihydrosilanes by a chiral half‐sandwich scandium catalyst, which constitutes an efficient and general route for the synthesis of a wide range of enantioenriched silicon‐stereogenic
[EN] PHENYL CARBAMATE COMPOUNDS FOR USE IN PREVENTING OR TREATING PEDIATRIC EPILESY AND EPILESY-RELATED SYNDROMES<br/>[FR] COMPOSÉS PHÉNYL CARMABATE DESTINÉS À L'UTILISATION DANS LA PRÉVENTION OU LE TRAITEMENT DE L'ÉPILEPSIE PÉDIATRIQUE OU DES SYNDROMES APPARENTÉS À L'ÉPILEPSIE
申请人:BIO PHARM SOLUTIONS CO LTD
公开号:WO2014142477A1
公开(公告)日:2014-09-18
The present invention provides a pharmaceutical composition for preventing and/or treating a pediatric epilepsy or epilepsy-related syndrome comprising the phenyl carbamate compound as an active ingredient, and a use of the phenyl carbamate compound for preventing and/or treating pediatric epilepsy or pediatric epilepsy-related syndromes.
α-C—H Alkylation of Methyl Sulfides with Alkenes by a Scandium Catalyst
作者:Yong Luo、Yuanhong Ma、Zhaomin Hou
DOI:10.1021/jacs.7b11245
日期:2018.1.10
addition of sulfides to alkenes is an atom-efficient route for the functionalization and modification of sulfide compounds through C-C bond formation, but this transformation is highly challenging. We report here the regioselective α-C(sp3)-H addition of a wide range of methyl sulfides to a variety of olefins and dienes by a half-sandwich scandium catalyst. This protocol provides a unique route for the synthesis
硫化物与烯烃的 CH 加成是通过形成 CC 键对硫化物化合物进行官能化和改性的一种原子有效途径,但这种转化极具挑战性。我们在这里报告了通过半夹心钪催化剂将多种甲基硫化物区域选择性地加成到各种烯烃和二烯中的 α-C(sp3)-H。该协议为通过在硫相邻碳原子上以 100% 原子效率的方式形成 CC 键来合成多种硫化物衍生物提供了独特的途径。
Regio‐ and Diastereoselective [3+2] Annulation of Aliphatic Aldimines with Alkenes by Scandium‐Catalyzed β‐C(sp
<sup>3</sup>
)−H Activation
Half-sandwich scandium catalysts serve as a unique platform for the regio- and diastereoselective [3+2] annulation of aliphaticaldimines with alkenes via β-C(sp3)−Hactivation, affording a new family of multi-substituted aminocyclopentane derivatives from easily accessible aldimines and alkenes with broad substrate scope, high regio-, diastereoselectivity and 100 % atom-efficiency.