A Manganese Pre-Catalyst: Mild Reduction of Amides, Ketones, Aldehydes, and Esters
作者:Colin M. Kelly、Robert McDonald、Orson L. Sydora、Mark Stradiotto、Laura Turculet
DOI:10.1002/anie.201709441
日期:2017.12.11
Hey Man(ganese): A newly prepared (N-phosphinoamidinate)manganese pre-catalyst (see Scheme) has been shown to be effective for the hydrosilative reduction of a diverse scope of carbonyl compounds, and in most cases can be used at room temperature. The reaction proceeds under reaction conditions which are competitive with the most effective transition-metal catalysts known for such transformations,
[EN] SULFONYLPIPERAZINE DERIVATIVES THAT INTERACT WITH GLUCOKINASE REGULATORY PROTEIN FOR THE TREATMENT OF DIABETES<br/>[FR] DÉRIVÉS DE SULFONYLPIPÉRAZINE QUI INTERAGISSENT AVEC LA PROTÉINE RÉGULATRICE DE LA GLUCOKINASE POUR LE TRAITEMENT DU DIABÈTE
申请人:AMGEN INC
公开号:WO2012027261A1
公开(公告)日:2012-03-01
The present invention relates to compounds of Formula I, or pharmaceutically acceptable salts thereof, that interact with glucokinase regulatory protein. In addition, the present invention relates to methods of treating type 2 diabetes, and other diseases and/or conditions where glucokinase regulatory protein is involved using the compounds, or pharmaceutically acceptable salts thereof, and pharmaceutical compositions that contain the compounds, or pharmaceutically acceptable salts thereof.
作者:Alan R. Katritzky、Stanislaw Rachwal、Gregory J. Hitchings
DOI:10.1016/s0040-4020(01)87080-0
日期:1991.1
eliminated to form products of type Bt-CHR-NR′R″. The latter are versatile intermediates for the preparation of primary, secondary, and tertiary amines and in the alkylation of hydroxylamines, hydrazines, amides, thioamides, and sulfonamides. Polyfunctional amines and other polyfunctional compounds can also be prepared, and they enable significant extending of Mannich reaction.
A hydrogen borrowing annulation strategy for the stereocontrolled synthesis of saturated aza-heterocycles
作者:Anna E. R. Chamberlain、Kieran J. Paterson、Roly J. Armstrong、Heather C. Twin、Timothy J. Donohoe
DOI:10.1039/d0cc00903b
日期:——
A hydrogen borrowing annulation strategy enables the stereocontrolled synthesis of C2, C3 and C4-substituted saturated aza-heterocycles.
一种氢借位缩合策略实现了C2、C3和C4取代饱和氮杂环的立体控制合成。
Transfer hydrogenation of pyridinium and quinolinium species using ethanol as a hydrogen source to access saturated N-heterocycles
作者:Suman Yadav、Dhananjay Chaudhary、Naveen Kumar Maurya、Dharmendra Kumar、Km Ishu、Malleswara Rao Kuram
DOI:10.1039/d2cc00241h
日期:——
Catalytic transfer hydrogenation (TH) for the reduction of heterocycles is an emerging strategy for accessing biologically active saturated N-heterocycles. Herein, we report a TH protocol that utilizes ethanol as a renewable hydrogen source and an Ir catalyst for the reduction of quinolines and pyridines. The reaction is promoted by simple amides as ligands.
用于还原杂环的催化转移氢化 (TH) 是获得具有生物活性的饱和 N-杂环的新兴策略。在此,我们报告了一种 TH 协议,该协议利用乙醇作为可再生氢源和 Ir 催化剂来还原喹啉和吡啶。该反应通过简单的酰胺作为配体来促进。