Title:
1,3-ジブロモアセトン、1,3-ジクロロアセトン及びエピクロロヒドリンの製造方法
Document Type and Number:
Japanese Patent JP2008500389
Kind Code:
A
Abstract:
A process for preparing 1,3-dibromoacetone, 1-3-dichloroacetone and epichlorohydrin which comprises: (a) re-acting acetone with 2 moles of bromine to make a mixture of brominated acetone derivatives and byproduct hydrogen bromide; (b) equilibrating the mixture of brominated acetone derivatives and hydrogen bromide to produce 1,3-dibromoacetone as the major product; (c) crystallizing the 1,3-dibromoacetone; and (d) isolating the 1,3-dibromoacetone. The process may further include the steps of (e) reacting the 1,3-dibromoacetone with a chloride source to produce 1,3-dichloroacetone; (f) hydrogenating the isolated 1,3-dichloroacetone to produce 1,3-dichlorohydrin; and (g) cyclizing the 1,3-dichlorohydrin with a base to produce epichlorohydrin.
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Inventors:
Davis, Clark S.
Application Number:
JP2007527361A
Publication Date:
January 10, 2008
Filing Date:
May 17, 2005
Export Citation:
Assignee:
Dow Global Technologies Incorporated
International Classes:
C07C45/63; C07C29/145; C07C31/36; C07C45/81; C07C45/82; C07C49/16; C07D301/26; C07D303/08; C07B61/00
Domestic Patent References:
| JPS59210030A | 1984-11-28 | |||
| JPS6388148A | 1988-04-19 |
Foreign References:
| SU1567568A1 | 1990-05-30 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Takashi Ishida
Tetsuji Koga