Synthesis of tertiary amines by direct Brønsted acid catalyzed reductive amination
作者:Mohanad A. Hussein、An H. Dinh、Vien T. Huynh、Thanh Vinh Nguyen
DOI:10.1039/d0cc02955f
日期:——
reductive amination reaction of carbonyl compounds. Despite developments of numerous new reductive amination methods in the past few decades, this reaction generally requires non-atom-economic processes with harsh conditions and toxic transition-metal catalysts. Herein, we report simple yet practical protocols using triflic acid as a catalyst to efficiently promote the direct reductive amination reactions
Visible‐Light‐Induced Controlled Oxidation of
<i>N</i>
‐Substituted 1,2,3,4‐Tetrahydroisoquinolines for the Synthesis of 3,4‐Dihydroisoquinolin‐1(2
<i>H</i>
)‐ones and Isoquinolin‐1(2
<i>H</i>
)‐ones
作者:Ajay H. Bansode、Gurunath Suryavanshi
DOI:10.1002/adsc.202001266
日期:2021.3.2
controlled oxidation of N‐substituted 1,2,3,4‐tetrahydroisoquinolines is developed for the synthesis of 3,4‐dihydroisoquinolin‐1(2H)‐ones and isoquinolin‐1(2H)‐ones. The present method feature's a broad substrate scope, good functional group tolerances, and the products were prepared in good to excellent yields. The developed methodology further demonstrated in the synthesis of isoindolo[2,1‐b] isoquinolin‐5(7H)‐one
Efficient Synthesis of <i>N</i>-Alkyl Tetrahydroisoquinolines by Reductive Amination
作者:Sukanta Bhattacharyya、Hephzibah Kumpaty
DOI:10.1055/s-2005-872081
日期:——
An expedient access to diverse N-alkyl 1,2,3,4-tetrahydroisoquinolines is reported by reductive amination of aldehydes and ketones with tetrahydroisoquinoline (THIQ) in the presence of Ti(Oi-Pr) 4 and NaBH 4 . The N-alkyl THIQ products were rapidly purified by flow-through catch and release technique using commercially available polymer-supported sulfonic acid, MP-TsOH columns.
Synthesis of Tertiary Amines Using a Polystyrene (REM) Resin
作者:Angus R. Brown、David C. Rees、Zoran Rankovic、J. Richard Morphy
DOI:10.1021/ja963829f
日期:1997.4.1
tertiary amines was constructed using a “traceless” linker on a polystyrene resin (REM resin), starting from secondary amines, primary amines, and resin-bound “ammonia”. The methodology is characterized by three essential steps conducted under ambient conditions: (1) coupling of the starting amine (Michael addition) to the resin, (2) activation (quaternization), and (3) cleavage of the product amine (Hofmann
CYCLIC AMINO COMPOUNDS FOR USE IN THE TREATMENT OF CARDIAC DISORDERS
申请人:Universitetet I Oslo
公开号:US20150141456A1
公开(公告)日:2015-05-21
The present invention relates to tertiary amines of formula (I) for use in therapy, particularly for use in treating cardiovascular disorders. The compounds have been found to regulate phospholamban phosphorylation by interfering with the A-kinase anchor protein 18delta (AKAP18δ) binding to the PKA substrate phospholamban. The compounds share a tri(alkylaryl/alkylheteroaryl) amine structure.