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(12) Patent: | (11) CA 2461574 |
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(54) English Title: | PROCESS FOR PREPARING VANILLYLAMINE HYROCHLORIDE |
(54) French Title: | PROCEDE DE PREPARATION D'HYDROCHLORURE DE VANILLYLAMINE |
Status: | Deemed expired |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | FETHERSTONHAUGH & CO. |
(74) Associate agent: | |
(45) Issued: | 2011-01-11 |
(86) PCT Filing Date: | 2002-09-26 |
(87) Open to Public Inspection: | 2003-04-10 |
Examination requested: | 2007-09-24 |
Availability of licence: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/EP2002/010803 |
(87) International Publication Number: | WO2003/029208 |
(85) National Entry: | 2004-03-24 |
(30) Application Priority Data: | ||||||
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Process for preparing vanillylamine or one of the salts thereof by
a) reacting vanillin with hydroxylamine or the salts thereof in the presence
of an
organic salt, which may optionally be produced in situ, and
b) subsequently hydrogenating the resulting vanillyloxime with hydrogen in the
presence of a suitable catalyst and an organic and/or inorganic acid,
characterised in that step a) is carried out in an inorganic or organic acid
as
diluent.
L'invention concerne un procédé de production de vanillylamine ou d'un de ses sels par : a) mise en réaction de vanilline avec de l'hydroxylamine ou avec les sels de celle-ci, en présence d'un sel organique qui, éventuellement, peut être produit in situ ; et b) hydrogénation consécutive de la vanillyloxime produite avec de l'hydrogène, en présence d'un catalyseur approprié et d'un acide organique et/ou d'un acide inorganique. Ce procédé se caractérise en ce que l'étape a) est réalisée dans un acide inorganique ou dans un acide organique servant de diluant.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Title | Date |
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Forecasted Issue Date | 2011-01-11 |
(86) PCT Filing Date | 2002-09-26 |
(87) PCT Publication Date | 2003-04-10 |
(85) National Entry | 2004-03-24 |
Examination Requested | 2007-09-24 |
(45) Issued | 2011-01-11 |
Deemed Expired | 2013-09-26 |
There is no abandonment history.
Fee Type | Anniversary Year | Due Date | Amount Paid | Paid Date |
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Registration of a document - section 124 | $100.00 | 2004-03-24 | ||
Application Fee | $400.00 | 2004-03-24 | ||
Maintenance Fee - Application - New Act | 2 | 2004-09-27 | $100.00 | 2004-03-24 |
Maintenance Fee - Application - New Act | 3 | 2005-09-26 | $100.00 | 2005-08-23 |
Maintenance Fee - Application - New Act | 4 | 2006-09-26 | $100.00 | 2006-08-22 |
Maintenance Fee - Application - New Act | 5 | 2007-09-26 | $200.00 | 2007-08-22 |
Request for Examination | $800.00 | 2007-09-24 | ||
Maintenance Fee - Application - New Act | 6 | 2008-09-26 | $200.00 | 2008-08-21 |
Maintenance Fee - Application - New Act | 7 | 2009-09-28 | $200.00 | 2009-08-24 |
Maintenance Fee - Application - New Act | 8 | 2010-09-27 | $200.00 | 2010-08-20 |
Final Fee | $300.00 | 2010-10-27 | ||
Maintenance Fee - Patent - New Act | 9 | 2011-09-26 | $200.00 | 2011-09-16 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG |
Past Owners on Record |
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HEDDESHEIMER, INGO |
MEYER, OLIVER |