Title:
METHOD FOR PURIFYING ALKENYL COMPOUND BY DISTILLATION
Document Type and Number:
Japanese Patent JP2002136801
Kind Code:
A
Abstract:
To provide a method for giving a purified alkenyl compound having a very low color number, without having defects described in detailed description of this invention and without incurring a high cost.
When an alkenyl compound having a divalent or trivalent heteroatom at α-position based on the double bond is purified, distillation is carried out at least two times and the purified compound is obtained from a vapor phase by condensation. The time between the first distillation after the synthesis of the alkenyl compound and at least one further distillation is at least one day, and the purified alkenyl compound has an APHA color number of <30.
Inventors:
LORENZ RUDOLF ERICH
BOETTCHER ARND
PINKOS ROLF
BOETTCHER ARND
PINKOS ROLF
Application Number:
JP2001242326A
Publication Date:
May 14, 2002
Filing Date:
August 09, 2001
Export Citation:
Assignee:
BASF AG
International Classes:
B01D3/14; C07B63/00; C07C41/42; C07C43/16; C07C209/84; C07D223/10; C07D223/12; C07D233/58; C07D521/00; C07C211/21; (IPC1-7): B01D3/14; C07C41/42; C07C43/16; C07D223/12; C07D233/58
Attorney, Agent or Firm:
Toshio Yano (4 outside)
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