Efficient photocatalytic one-pot hydrogenation and N-alkylation of nitrobenzenes/benzonitriles with alcohols over Pd/MOFs: Effect of the crystal morphology & “quasi-MOF” structure
photocatalysts for highly efficientone-pot hydrogenation and N-alkylation of nitrobenzenes or benzonitriles with alcohols after in situ Pd photoreduction. Photocatalytic performance was evidently affected by the Fe-MOFs crystal size, morphology, crystalline structure alteration and “quasi-MOF” construction. One-pot hydrogenation and N-alkylation of benzonitriles with alcohols was achieved with excellent
efficient copper-catalyzed selectivetransferhydrogenation of nitriles to primary amine-boranes and secondary amines with an oxazaborolidine–BH3 complex is reported. The selectivity control was achieved under mild conditions by switching the solvent and the copper catalysts. More than 30 primary amine-boranes and 40 secondary amines were synthesized via this strategy in high selectivity and yields of up to
Effective reductive amination of carbonyl compounds with hydrogen catalyzed by iridium complex in organic solvent and in ionic liquid
作者:Daisuke Imao、Shoichiro Fujihara、Takeshi Yamamoto、Tetsuo Ohta、Yoshihiko Ito
DOI:10.1016/j.tet.2005.05.024
日期:2005.7
compounds with amines has been achieved using homogenous iridiumcatalyst and gaseous hydrogen. It appeared that the cationic iridiumcatalyst, [Ir(cod)2]BF4, without any other ligands was sufficient for the reaction. For the DRA of the ketone substrates, an ionicliquid, [Bmim]BF4, was found to be superior to the other organic solvent used. Especially, the counter anion of the ionicliquid has a significant
Antibacterial water-soluble cutting fluids resistant to yeast-like fungi
申请人:YUSHIRO CHEMICAL INDUSTRY CO. LTD.
公开号:EP0388320A1
公开(公告)日:1990-09-19
A bactericide is added to conventional water-soluble cutting fluids to suppress deterioration by microorganisms. Such fluids are however accompanied by the drawbacks that the bactericide has a narrow antibacterial spectrum and moreover its effects last a short time. It is the object of the present invention to offers water-soluble cutting fluids which remain resistant to a wide variety of microorganisms for a long time. The present invention therefore offers water-soluble cutting fluids to which has been added a specific amine selected from amines known to date.
Polyoxometalate-Driven Ease Conversion of Valuable Furfural to <i>trans</i>-<i>N</i>,<i>N</i>-4,5-Diaminocyclopenten-2-ones
作者:Marina A. Tzani、Stella Fountoulaki、Ioannis N. Lykakis
DOI:10.1021/acs.joc.1c02550
日期:2022.3.4
efficacy of silicotungstic acid (H4SiW12O40) polyoxometalate (POM) toward the reaction between furfural and amines that selectively yields trans-N,N-4,5-substituted-diaminocyclopenten-2-ones (trans-DACPs). H4SiW12O40 facilitates the synthesis of a library of trans-DACPs with loadings as low as 0.05 mol %, in open air, without additives, in short times and good to high isolated yields. The protocol was applied
我们研究了硅钨酸 (H 4 SiW 12 O 40 ) 多金属氧酸盐 (POM) 对糠醛和胺之间反应的催化效果,该反应选择性地产生反式- N , N -4,5-取代二氨基环戊烯-2-酮 ( trans - DACP)。H 4 SiW 12 O 40促进反式-DACP 库的合成,其负载量低至0.05 mol%,在露天,无添加剂,在短时间内和良好的高分离产率。该方案适用于仲胺以及具有 p K b的芳族伯胺高于约 9. 目前的催化合成方案具有扩展的底物范围和高产率,据我们所知,它代表了第一个多金属氧酸盐驱动的范例,作为在温和反应条件下生产环戊酮框架的有效方法。