diethyl(phenyl)ammonium chloride;N,N-diethylanilinium chloride;N,N-diethyl-aniline; hydrochloride;N,N-Diaethyl-anilin; Hydrochlorid;N,N-diethyl-benzenamine, hydrochloride;hydrochloric acid salt of N,N-diethylaniline;Diethyl(phenyl)azanium;chloride;diethyl(phenyl)azanium;chloride
Corey–Itsuno Reduction of Ketones: A Development of Safe and Inexpensive Process for Synthesis of Some API Intermediates
摘要:
A safe and inexpensive procedure for asymmetric reduction of ketones using in situ prepared N,N-diethylaniline borane (DEANB) and oxazaborolidine catalyst from sodium borohydride, N,N-diethylaniline hydrochloride and (S)-alpha,alpha-diphenylprolinol is described. This protocol is demonstrated successfully to manufacture enantiopure dapoxetine at the plant scale.
Studies of phosphorylation reaction of tertiary amines by NMR spectroscopy
作者:L. I. Larina、V. G. Rozinov、T. N. Komarova
DOI:10.1007/s11172-013-0006-4
日期:2013.1
amines containing at least two ethyl groups at the nitrogen atom with phosphorus pentachloride was studied. New C-chlorophosphorylated enamines were characterized by NMR spectroscopy. A scheme was suggested for the phosphorylation reaction. It was found that the presence of two aryl substituents in the molecule of tertiary ethylamine deactivated the ethyl group to block phosphorylation. Phosphorylation
A method of controlling plant diseases, especially fungi, using oxime carbamates and analogs thereof and novel compounds within the class.
Reason: Rule 8.1.i PCT.
Methods of manufacture of 2'-deoxy-beta-L-nucleosides
申请人:——
公开号:US20040266996A1
公开(公告)日:2004-12-30
The present invention relates to the synthesis of 2′-deoxy-&bgr;-L-thymidine, 2′-deoxy-&bgr;-L-uridine and 2′-deoxy-&bgr;-L-cytidine, and their derivatives, such as the 3′-O-acyl or 3′,5′-O-diacyl prodrugs, including the 3′-O-L-aminoacyl and 3′,5′-O-L-diaminoacyl prodrugs, and particularly the 3′-O-L-valinyl and 3′,5′-O-L-divalinyl prodrugs.
Process for preparing N,N-dialkylaniline salt of 5-acetyl-2-alkylbenzene
申请人:Seitetsu Kagaku Co., Ltd.
公开号:US04853158A1
公开(公告)日:1989-08-01
Process for preparing 2-alkyl-5-haloacetylbenzenesulfonamide represented by the general formula (1), ##STR1## (wherein R.sup.1 is an alkyl group having 1 to 5 carbon atoms; and X is a chlorine atom, bromine atom or iodine atom), characterized by halogenating a 5-acetyl-2-alkylbenzenesulfonamide represented by the general formula (2), ##STR2## (wherein R.sup.1 is the same as defined above) in a lower alcohol represented by the general formula (3), R.sup.4 --OH (wherein R.sup.4 is an alkyl group having 1 to 5 carbon atoms).
An integrated process for the preparation of aromatic mono- and polyisocyanates from aromatic amines
申请人:ARCO CHEMICAL TECHNOLOGY INC.
公开号:EP0391716A1
公开(公告)日:1990-10-10
A multi-step process for the preparation of aromatic mono- and polyisocyanates in which an aromatic mono- or polyamine and isocyanic acid are reacted to form an aromatic urea which is then reacted with a dialkyl amine to give an aromatic dialkyl urea product. The aromatic dialkyl urea is thermally treated in an inert organic solvent in the presence of a reaction promoter to produce the isocyanate.