Title:
【発明の名称】トリメチロ-ルアルカンの製法
Document Type and Number:
Japanese Patent JP2003525876
Kind Code:
A
Abstract:
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 C1-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.
Inventors:
Murakami Masayoshi
Clausener, Alexander
Bagner, Paul
Clausener, Alexander
Bagner, Paul
Application Number:
JP2001551821A
Publication Date:
September 02, 2003
Filing Date:
January 03, 2001
Export Citation:
Assignee:
Bayer Aktiengesellschaft
International Classes:
C07B61/00; C07C29/14; C07C31/22; C07C45/75; (IPC1-7): C07C29/14; C07B61/00; C07C31/22
Attorney, Agent or Firm:
Heiyoshi Odashima