Production of 1-(3-hydroxy-propyl)-1,4-diazepane and
申请人:Degussa Aktiengesellschaft
公开号:US04751298A1
公开(公告)日:1988-06-14
There is disclosed a process for the production of 1,4-bis-[3-(3,4,5-trimethoxybenzyloxy)-propyl]-diazepane which consists of first reacting 3-aminopropanol with acrylonitrile and subsequently reacting in aqueous solution with formaldehyde and hydrocyanic acid or with formaldehyde and an alkali cyanide in the presence of alkali hydrogen sulfite to form cyanomethyl-(2-cyano-ethyl)-(3-hydroxy-propyl)-amine; hydrogenating the thus obtained reaction product in the presence of a hydrogenating catalyst and ammonia to 1 (3-hydroxy-propyl)-1,4-diazepane and reacting the latter compound for example with 3-halogen propanol or with allyl alcohol and introducing two 3,4,5-trimethoxy-benzoyl groups into the thus obtained reaction product by esterification.
Novel linear, unbranched, non-cross-linked polymers particularly poly-[methyl-(3-trimethylammoniopropyl)imino} trimethylene dihalide] are prepared by the polymerization of the novel monomer, 3-[N'-(3-halopropyl)-N'-methylamino]-N,N,N-trimethyl-l-propanaminium halide, or an acid addition salt thereof preferably in an oxygen excluded environment, e.g., under nitrogen or argon. The polymer, especially after modification of terminal groups, is an excellent oral anticholesterolemic.
[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.
Cyanoethylation of Aromatic Aldehyde Imines Containing a Hydroxy Group in the β- or γ-Position. Synthesis of 3-Cyanoethyl-1,3-oxazacycloalkanes
作者:S. G. Kon’kova、G. M. Abovyan、A. Kh. Khachatryan、A. E. Badasyan、G. A. Panosyan、M. S. Sargsyan
DOI:10.1007/s11178-005-0290-z
日期:2005.7
Acrylonitrile reacts with aromatic aldehyde imines containing a hydroxy group in the β- or γ-position to give 70–85% of the corresponding 2-aryl-3-cyanoethyltetrahydro-1,3-oxazines or 2-aryl-3-cyanoethyl-1,3-oxazolidines, respectively. The results of these reactions are rationalized in terms of ring-chain isomerism of the initial imines.
Novel linear, unbranched, non-cross-linked polymers particularly poly-[methyl-(3-trimethylammoniopropyl)iminio}trimethylene dihalide] are prepared by the polymerization of the novel monomer, 3-[N'-(3-halopropyl)-N'-methylamino]-N,N,N-trimethyl-1-propanaminium halide, or an acid addition salt thereof preferably in an oxygen excluded environment, e.g., under nitrogen or argon. The polymer, especially after modification of terminal groups, is an excellent oral anticholesterolemic.