Title:
PROCESS FOR THE PREPARATION OF 3-HYDROXY-3-METHYLBUTYRIC ACID OR ITS CALCIUM SALTS
Document Type and Number:
WIPO Patent Application WO/2012/140276
Kind Code:
A3
Abstract:
A new process for preparing calcium salts of 3-hydroxy-3-methylbutyric acid is described. Lactones obtained from ketene and acetone are hydrolyzed in selective and scalable manners. The 3-hydroxy-3-methylbutyric acid or its calcium salts are useful in preparations for inhibiting protein depletion or as immuno-stimulating feedstuff additives for mammals.
Inventors:
NOTI CHRISTIAN (CH)
SCHMID LEO (CH)
RITTINER BRUNO (CH)
HANSELMANN PAUL (CH)
BIERSTEDT ANJA (CH)
SCHMID LEO (CH)
RITTINER BRUNO (CH)
HANSELMANN PAUL (CH)
BIERSTEDT ANJA (CH)
Application Number:
PCT/EP2012/066154
Publication Date:
January 10, 2013
Filing Date:
August 19, 2012
Export Citation:
Assignee:
LONZA AG (CH)
NOTI CHRISTIAN (CH)
SCHMID LEO (CH)
RITTINER BRUNO (CH)
HANSELMANN PAUL (CH)
BIERSTEDT ANJA (CH)
NOTI CHRISTIAN (CH)
SCHMID LEO (CH)
RITTINER BRUNO (CH)
HANSELMANN PAUL (CH)
BIERSTEDT ANJA (CH)
International Classes:
C07C51/41; C07C59/01
Domestic Patent References:
| WO1994006417A1 | 1994-03-31 | |||
| WO2002094255A1 | 2002-11-28 | |||
| WO1998034897A1 | 1998-08-13 |
Foreign References:
| CN1417190A | 2003-05-14 | |||
| US6090978A | 2000-07-18 | |||
| US4992470A | 1991-02-12 |
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