[EN] DERIVATIVES OF 6,7-DIHYDRO-5H-IMIDAZO[1,2-a]IMIDAZOLE-3-CARBOXYLIC ACID AMIDES<br/>[FR] DÉRIVÉS D'AMIDES D'ACIDE 6,7-DIHYDRO-5H-IMIDAZO[1,2-A]IMIDAZOLE-3-CARBOXYLIQUE
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2010141273A1
公开(公告)日:2010-12-09
Derivatives of 6,7-dihydro-5H-imidazo[1,2-a]imidazole-3-carboxylic acid amide exhibit good inhibitory effect upon the interaction of CAMs and Leukointegrins and are thus useful in the treatment of inflammatory disease.
Substrate Evaluation of<i>Rhodococcus erythropolis</i>SET1, a Nitrile Hydrolysing Bacterium, Demonstrating Dual Activity Strongly Dependent on Nitrile Sub-Structure
作者:Tracey M. Coady、Lee V. Coffey、Catherine O'Reilly、Claire M. Lennon
DOI:10.1002/ejoc.201403201
日期:2015.2
Rhodococcus erythropolis SET1, a novel nitrilehydrolysing bacterial isolate, has been undertaken with 34 nitriles, 33 chiral and 1 prochiral. These substrates consist primarily of β-hydroxy nitriles with varying alkyl and aryl groups at the β position and containing in several compounds different substituents α to the nitrile. In the case of β-hydroxy nitriles without substitution at the α position
Synthesis of silyl iron hydride <i>via</i> Si–H activation and its dual catalytic application in the hydrosilylation of carbonyl compounds and dehydration of benzamides
The hydrido silyl iron complex (o-Ph2PC6H4SiMe2)Fe(PMe3)3H (2) was obtained via the activation of the Si–H bond of the bidentate silyl ligand o-Ph2P(C6H4)SiMe2H (1) by Fe(PMe3)4. 2 showed good to excellent catalytic activity in both the reduction of aldehydes/ketones and the dehydration of benzamide. In addition, with complex 2 as a catalyst, α,β-unsaturated carbonyls could be selectively reduced to
氢化硅烷基铁络合物(o -Ph 2 PC 6 H 4 SiMe 2)Fe(PMe 3)3 H(2)是通过激活双齿甲硅烷基配体o -Ph 2 P(C)的Si–H键而获得的Fe(PMe 3)4形成6 H 4)SiMe 2 H(1)。图2在醛/酮的还原和苯甲酰胺的脱水中均显示出良好至优异的催化活性。另外,带复数2作为催化剂,α,β-不饱和羰基可以选择性地还原为相应的α,β-不饱和醇。提出了2的形成机理和催化脱水过程,并进行了部分实验验证。
LiOH-Catalyzed Simple Ring Opening of Epoxides Under Solvent-Free Conditions
sulfides and β-hydroxyl nitriles by ring opening of epoxides with aromatic, aliphatic, and heterocyclic thiols and trimethylsilyl cyanide at room temperature under solvent free conditions. All the reactions proceeded satisfactorily in short times and afforded the corresponding products in good to excellent yields with high regioselectivity and chemoselectivity under mild reaction conditions.
Ruthenium-catalyzed formation of pyrazoles or 3-hydroxynitriles from propargyl alcohols and hydrazines
作者:Julia Kaufmann、Elisabeth Jäckel、Edgar Haak
DOI:10.24820/ark.5550190.p010.893
日期:——
Functionalized pyrazoles are generated from secondary propragyl alcohols and hydrazines in a rutheniumcatalyzed cascade process, consisting of redox isomerization, Michael addition, cyclocondensation and dehydrogenation steps. The same bifunctional catalyst mediates the conversion of tertiary propargyl alcohols with hydrazine to 3-hydroxynitriles via anti-Markovnikov hydroamination followed by elimination