EP 1250301 A1 20021023 - METHOD FOR PRODUCING TRIMETHYLOL ALKANES
Title (en)
METHOD FOR PRODUCING TRIMETHYLOL ALKANES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TRIMETHYLOLALKANEN
Title (fr)
PROCEDE DE PREPARATION DE TRIMETHYLOLALCANES
Publication
Application
Priority
- DE 10001257 A 20000114
- EP 0100016 W 20010103
Abstract (en)
[origin: WO0151438A1] The invention relates to a two-step method for producing trimethylol alkanes of the general formula (I), (HOCH2)3-C-R, wherein R represents methylol, C1-C12 alkyl, C6-C10 aryl or C7-C22 aralkyl, and simultaneously producing calcium formiate on the basis of an aldehyde of the formula (II), RCH2CHO, wherein R has the meaning indicated above. In a first step, an aldehyde of the formula (II) and a formaldehyde are reacted in the presence of a base to give a 2,2-dimethylol alkanal of formula (III), wherein R has the meaning indicated above. In a second step, the compound of formula (III) is reacted with formaldehyde in the presence of calcium hydroxide. The invention provides a method for obtaining trimethylol alkanes of the general formula (I) with a high purity and in high yields.
IPC 1-7
IPC 8 full level
C07B 61/00 (2006.01); C07C 29/14 (2006.01); C07C 31/22 (2006.01); C07C 45/75 (2006.01)
CPC (source: EP KR US)
C07C 29/14 (2013.01 - EP KR US); C07C 45/75 (2013.01 - EP US)
Citation (search report)
See references of WO 0151438A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0151438 A1 20010719; AU 3539101 A 20010724; CA 2396947 A1 20010719; CN 1395550 A 20030205; DE 10001257 A1 20010719; EP 1250301 A1 20021023; JP 2003525876 A 20030902; KR 20020063004 A 20020731; US 2003009062 A1 20030109
DOCDB simple family (application)
EP 0100016 W 20010103; AU 3539101 A 20010103; CA 2396947 A 20010103; CN 01803699 A 20010103; DE 10001257 A 20000114; EP 01907401 A 20010103; JP 2001551821 A 20010103; KR 20027009082 A 20020713; US 18101102 A 20020712