Base-catalyzed synthesis of aryl amides from aryl azides and aldehydes
作者:Sheng Xie、Yang Zhang、Olof Ramström、Mingdi Yan
DOI:10.1039/c5sc03510d
日期:——
Aryl amides are efficiently synthesized from the rearrangement of triazolines, which formed in the base-catalyzed azide–aldehyde cycloaddtion.
芳基酰胺可以通过三唑烯的重排合成,三唑烯是在碱催化的叠氮化物-醛环加成中形成的。
HETEROCYCLIC COMPOUND
申请人:Japan Tobacco, Inc.
公开号:EP1889842A1
公开(公告)日:2008-02-20
The present invention provides a compound represented by the following formula [1'] or a salt thereof:
wherein ring A, R2, R3, R4 and X are as defined in the description, and an agent for the treatment or prophylaxis of a pathology involving glucocorticoid, or a 11βHSD1 inhibitor, containing the compound or a salt thereof.
Provided is a method capable of efficiently producing a compound having a superior HSD1 inhibitory action and a compound useful as a synthetic intermediate therefor, with superior achievability of asymmetric synthesis (i.e., superior selectivity), superior yield, superior safety and superior industrial workability at a low cost.
A method of producing a compound represented by the following formula [8]:
or a salt thereof, or a solvate thereof, from a compound represented by the following formula [2]:
or a reactive derivative thereof, or a salt thereof, or a solvate thereof.
Transition-Metal-Free Synthesis of Oxindoles by Potassium <i>tert</i>-Butoxide-Promoted Intramolecular α-Arylation
作者:Astrid Beyer、Julien Buendia、Carsten Bolm
DOI:10.1021/ol301704z
日期:2012.8.3
Potassium tert-butoxide-mediated intramolecular alpha-arylations of fluoro- and chloro-substituted anilides provide oxindoles in DMF at 80 degrees C. In this manner, diversely substituted products have been obtained in moderate to high yields.
Nickel (II)-Catalyzed efficient aminocarbonylation of unreactive alkanes with formanilides—Exploiting the deformylation behavior of imides
attracted much attention of organic chemists. In this paper, we developed a Ni(acac)2-catalyzed activation of unreactive alkanes with formanilides in the presence of carbonmonoxide to furnish moderate to excellent yields of amides. This is the first example of aminocarbonylation of inert alkanes using nickel-based catalyst, and formanilides is disclosed to be an interesting amine source owing to the peculiar