金刚烷-1-羧酸甲酯和(1-金刚烷基)乙酸甲酯在氢化钠存在下与乙腈反应,分别生成3-(1-金刚烷基)-3-氧代丙腈和4-(1-金刚烷基)-3-氧代丁腈. 涉及(1-金刚烷基)-乙酸甲酯的反应也产生2-(1-金刚烷基)-N-(E-1-氰基丙-1-烯-2-基)乙酰胺;该副产物的结构是通过 X 射线衍射分析确定的。
2-Trifluoromethylated furans and dihydrofuranols were tunably synthesized from the cyclization of β-ketonitriles with 3-bromo-1,1,1-trifluoroacetone mediated by bases. In addition, dehydration of dihydrofuranol compounds with concentratedsulfuricacid gave another 2-(trifluoromethyl)furans isomer. The developed methodology exhibits an excellent functional group tolerance for both aromatic and aliphatic β-ketonitriles
An approach to the dichlorinative deamidation of primary β-ketoamides through ketonic cleavage is described, and a series of α,α-dichloroketones were furnished mostly in the presence of TEMPO. Based on control experiments, a mechanism involving tandem dichlorination and deamidation is proposed to interpret the observed reactivity.
A ‘sulfonyl-azide-free’ (SAFE) aqueous-phase diazo transfer reaction for parallel and diversity-oriented synthesis
作者:Dmitry Dar’in、Grigory Kantin、Mikhail Krasavin
DOI:10.1039/c9cc02042j
日期:——
Diazotransferreactions are notoriously associated with the use of potentially explosive sulfonyl azides. The first ‘sulfonyl-azide-free’ (SAFE) protocol for producing diazo compounds from their active-methylene precursors via the Regitz diazotransferreaction was developed and has displayed a remarkable substrate scope. It can be applied to generating arrays of diazo compounds for further evolution
A cascade process for the straightforward one-pot conversion of β-ketonitriles into β-hydroxyamides is presented. The process, that proceeds in water employing the arene-ruthenium(II) complex [RuCl2(η6-p-cymene)P(4-C6H4F)2Cl}] as catalyst in combination with sodium formate, involves the initial hydration of the β-ketonitrile substrates to generate the corresponding β-ketoamide intermediates, which
提出了一种简单的一锅法将β-乙腈转化为β-羟酰胺的级联方法。的过程中,在水中进行采用芳烃-钌(II)络合物将[RuCl 2(η 6 - p -cymene)P(4-C 6 H ^ 4 F)2氯}]如甲酸钠催化剂组合该方法涉及β-酮腈底物的初始水合反应,以生成相应的β-酮酰胺中间体,然后对其进行羰基的转移氢化(TH)。雇用40个不同的β族-乙腈具有不同的取代模式,已经确定了该方法的范围和局限性。
[EN] P38 MAP KINASE INHIBITORS<br/>[FR] INHIBITEURS DE LA MAP KINASE P38
申请人:RESPIVERT LTD
公开号:WO2011124930A1
公开(公告)日:2011-10-13
There is provided a compound of formula (I): wherein: J represents (A): or (B): compositions comprising same, processes for preparing said compounds and use thereof in treatment, particularly in the treatment of inflammatory disease, such as asthma, COPD and 15 rheumatoid arthritis.