PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (IN4854/KOLNP/2007) METHOD FOR PRODUCING AMINES FROM HYDROXAMIC ACIDS

Office : India
Application Number: 4854/KOLNP/2007 Application Date: 13.12.2007
Publication Number: 4854/KOLNP/2007 Publication Date: 27.06.2008
Publication Kind : A
Prior PCT appl.: Application Number:PCTEP2006006549 ; Publication Number:WO2007006465 Click to see the data
IPC:
C07C 20/56
[IPC code unknown for C07C 20/56]
Applicants: ARCHIMICA GMBH
Inventors: MEUDT ANDREAS
BOHM, CLAUDIUS
Priority Data: 10 2005 032 592.0 11.07.2005 DE
Title: (EN) METHOD FOR PRODUCING AMINES FROM HYDROXAMIC ACIDS
Abstract:
(EN) A method for producing unprotected or carbamate-protected amines of formulae (II)and (III) or R1 - NH2 (II) or R1-NHCO2R2 (III) by reacting hydroxamic acids of formula(I) (R1 CONHOH) with a) alkylphosphonic acid anhydrite's, b) alcohol R2OH and c)optionally with a base, at a temperature ranging from 100 to +120°C, wherein thehydroxamic acid (I) is produced prior to or during reacting (in situ) and R1 is anoptionally substituted linear or branched C1C12 alkyl radical, substituted C3-C10cycloalkyl, alkenyl, aryl or heteroaryl radical and R2 is an open-chain, cyclic or branchedaIIyl, aryl or C1 to C12 -alkyl radicals, or aryloxy, allyloxy or alkoxy radical possiblysubstituted with open-chain, cyclic or branched C1 to C12 -alkyl radicals.
Also published as:
EP1904433US20080221357CN101208292WO/2007/006465