[EN] CATALYTIC HYDROGENATION OF NITRILES TO PRODUCE CAPSAICINOID DERIVATIVES AND AMINE COMPOUNDS, AND METHODS FOR PURIFIYING AND OBTAINING THE POLYMORPHS THEREOF<br/>[FR] HYDROGENATION CATALYTIQUE DE NITRILES POUR PRODUIRE DES DERIVES CAPSAICINOIDES ET DES COMPOSES D'AMINES, ET PROCEDES DE PURIFICATION ET D'OBTENTION DE LEURS POLYMORPHES
申请人:STIEFEL LABORATORIES
公开号:WO2005068414A1
公开(公告)日:2005-07-28
Processes for preparing an amine compound by catalytically hydrogenating a precursor nitrile compound. In a particular aspect, the present hydrogenation process occurs in a dipolar organic solvent in the presence of a palladium/carbon catalyst and a strong anhydrous protic acid. In a further aspect, the preferred embodiment relates to a process for deprotecting a compound to produce an amine compound. In yet a further aspect, the preferred embodiment relates to amine products produced by the present processes. These amine products may be used for a variety of purposes.
Catalytic hydrogenation of nitriles to produce capsaicinoid derivatives and amine compounds, and methods for purifying and obtaining the polymorphs thereof
申请人:Meckler Harold
公开号:US20060047171A1
公开(公告)日:2006-03-02
Processes for preparing an amine compound by catalytically hydrogenating a precursor nitrile compound. In a particular aspect, the present hydrogenation process occurs in a dipolar organic solvent in the presence of a palladium/carbon catalyst and a strong anhydrous protic acid. In a further aspect, the preferred embodiment relates to a process for deprotecting a compound to produce an amine compound. In yet a further aspect, the preferred embodiment relates to amine products produced by the present processes. These amine products may be used for a variety of purposes.
Novel preparation of functionalized iodotetrahydronaphthyridine, iodoazaindoline, and iodotetrahydropyridoazepine systems
作者:Hanh Nho Nguyen、Zhan J. Wang
DOI:10.1016/j.tetlet.2007.08.076
日期:2007.10
A novel method, which utilizes a key halogen dance step for the preparation of iodotetrahydronaphthyridine, iodoazaindoline, and iodotetrahydropyridoazepine ring-systems is described. A variety of transformations of the iodo-functional group are also reported to demonstrate the utility of this method. Published by Elsevier Ltd.
Application of Oxathiazolidine-S-oxide Chemistry to the Large-Scale Single-Step Synthesis of an O-Arylethanolamine
作者:Alan C. Barker、Kay A. Boardman、Simon D. Broady、William O. Moss、Bharti Patel、Michael W. Senior、Kenneth E. H. Warren
DOI:10.1021/op9800865
日期:1999.7.1
Alternative routes to the arylethanolamine subunit of a development drug have been investigated. The selected route, involving O-alkylation of a phenol using N-benzyloxathiazolidine-S-oxide, was developed to give a process used successfully for pilot plant manufacture.
CATALYTIC HYDROGENATION OF NITRILES TO PRODUCE CAPSAICINOID DERIVATIVES AND AMINE COMPOUNDS, AND METHODS FOR PURIFIYING AND OBTAINING THE POLYMORPHS THEREOF