Invention Grant
US09227905B2 Process for the production of 4-chloroacetoacetyl chloride, 4-chloroacetoacetic acid esters, amides and imides
有权
生产4-氯乙酰乙酰氯，4-氯乙酰乙酸酯，酰胺和酰亚胺的方法
- Patent Title: Process for the production of 4-chloroacetoacetyl chloride, 4-chloroacetoacetic acid esters, amides and imides
- Patent Title (中): 生产4-氯乙酰乙酰氯，4-氯乙酰乙酸酯，酰胺和酰亚胺的方法
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Application No.: US14112468Application Date: 2012-04-25
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Publication No.: US09227905B2Publication Date: 2016-01-05
- Inventor: Ellen Klegraf , Miguel Angel Caraucan Davila
- Applicant: Ellen Klegraf , Miguel Angel Caraucan Davila
- Applicant Address: CH Visp
- Assignee: LONZA LTD.
- Current Assignee: LONZA LTD.
- Current Assignee Address: CH Visp
- Agency: Hoffmann & Baron, LLP
- Priority: EP11003510 20110429
- International Application: PCT/EP2012/057529 WO 20120425
- International Announcement: WO2012/146604 WO 20121101
- Main IPC: C07C51/58
- IPC: C07C51/58 ; C07C59/21 ; C07C67/14 ; C07C231/02
Abstract:
The invention relates to process for the continuous production of 4-chloroacetoacetyl chloride, comprising the steps of (a) feeding diketene and chlorine into a thin film reactor and (b) reacting the diketene and chlorine to obtain 4-chloroacetoacetyl chloride. The invention also relates to a process for the production of 4-chloroacetoaceticacid ester, 4-chloroacetoaceticacid amide or 4-chloroacetoaceticacid imide from 4-chloroacetoacetyl chloride obtained according to the inventive process.
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