Indium-Mediated Reaction of 1-Bromo-1-nitroalkanes with Aldehydes: Access to 2-Nitroalkan-1-ols
作者:Raquel G. Soengas、Amalia M. Estévez
DOI:10.1002/ejoc.201000662
日期:2010.9
A novel method for the preparation of 2-nitroalkan-1-ols by an indium-promoted reaction of bromonitromethane with a variety of aldehydes is reported. The reaction was also performed with 2-bromo-2-nitropropanes to afford 2,2-dialkyl-2-nitroalkan-1-ols. The use of chiral sugar-derived aldehydes furnished the corresponding 2-nitroalkan-1-ols with excellent stereoselectivity. The utility of the novel
[EN] SUBSTITUTED TRIAZOLO BICYCLICCOMPOUNDS AS PDE2 INHIBITORS<br/>[FR] BICYCLO-COMPOSÉS DE TRIAZOLE SUBSTITUÉS UTILISÉS EN TANT QU'INHIBITEURS DE PDE2
申请人:MERCK SHARP & DOHME
公开号:WO2017000277A1
公开(公告)日:2017-01-05
The present invention is directed to substituted triazolo bicycliccompounds of formula (I) which are useful as therapeutic agents for the treatment of central nervous system disorders associated with phosphodiesterase 2 (PDE2). The present invention also relates to the use of such compounds for treating neurological and psychiatric disorders, such as schizophrenia, psychosis, Parkinson's disease, Parkinson's disease dementia (PDD), or Huntington's disease, and those associated with striatal hypofunction or basal ganglia dysfunction.
In the presence of MS 4 Å in DMSO (dimethyl sulfoxide), Henry reaction with various carbonyl compounds and nitroalkanes proceeded smoothly to give the corresponding β-nitroalcohol without a base catalyst. Moreover, 1,4-additon of nitroalkane to α,β-unsaturated ketones was also performed in DMSO.
在 DMSO(二甲基亚砜)中加入 MS 4 Å 的情况下,各种羰基化合物与硝基烷烃的 Henry 反应顺利进行,无需碱催化剂即可得到相应的 β-硝基醇。此外,硝基烷烃对 α,β-不饱和酮的 1,4-加成反应也在 DMSO 中得以实现。
Copper complexes of 1,4-diazabutadiene ligands: Tuning of metal oxidation state and, application in catalytic C-C and C-N bond formation
the N2Cl3 coordination sphere around copper(II) is distorted square pyramidal in nature in 2-OCH3. Isolated 2-R complexes, on dissolution in methanol, are found to undergo facile reduction of the metal center to generate the corresponding 1-R complexes. The 1-R and 2-R complexes show intense absorptions in the visible and ultraviolet regions. Cyclic voltammetry on the 1-R and 2-R complexes shows both
摘要1,4-二氮杂丁二烯(p-RC6H4N = C(H)(H)C = NC6H4R-p; R = OCH3,CH3,H和Cl;缩写为LR)在环境温度下于甲醇中与CuCl2·2H2O反应25°C)提供一组[CuI(LR)Cl} 2]类型的双氯桥联双铜配合物,命名为1-R。在乙腈中进行的类似反应提供了一种类型为[CuII(LR)Cl2} 2]的双氯桥联双铜络合物,称为2-R。1-OCH3和2-OCH3的分子结构已经通过X射线晶体学确定。虽然铜(I)在1-OCH3中具有接近四面体的N2Cl2配位球,但铜(II)周围的N2Cl3配位球在2-OCH3中实际上是扭曲的方形锥体。分离的2-R配合物,溶于甲醇后,被发现容易地还原金属中心以生成相应的1-R配合物。1-R和2-R配合物在可见光和紫外线区域显示出强烈的吸收。1-R和2-R配合物的循环伏安法显示了以金属为中心和以配体为中心的氧化还原反应。发现
Benzenesulfonyl-Asymmetric Ureas and Medical Uses Thereof
申请人:HELSINN HEALTHCARE SA
公开号:US20170275301A1
公开(公告)日:2017-09-28
Benzenesulfonyl-asymmetric ureas are provided for the treatment of conditions modulated by the ghrelin receptor.