Title:
HIGH-CARBON ALKANE DIAMINE TEREPHTHALATE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/083300
Kind Code:
A1
Abstract:
A high-carbon alkane diamine terephthalate, a preparation method therefor and an application thereof, which relate to the field of high-carbon alkane diamine terephthalate preparation. The preparation method for the high-carbon alkane diamine terephthalate comprises the following steps: 1) under amidation reaction conditions, high-carbon alkane diacid shown by formula COOH-(CH2)n-COOH undergoes a reaction with an ammonia-containing compound; 2) under alkaline conditions, in the presence of water and sodium hypochlorite and/or sodium hypobromite, high-carbon chain diamide shown by formula CONH2-(CH2)n-CONH2 undergoes rearrangement and degradation reactions; and in the presence of a solvent, high-carbon alkane diamine shown by formula (3) undergoes a salt-forming reaction with terephthalic acid. The described method is a safe, convenient, simple and easy-to-operate method for preparing high-carbon alkane diamine terephthalate that is particularly suitable for industrial preparation.
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Inventors:
ZHOU BO (CN)
WANG LEI (CN)
LIU YUAN (CN)
ZHANG YULONG (CN)
WANG LEI (CN)
LIU YUAN (CN)
ZHANG YULONG (CN)
Application Number:
PCT/CN2020/125032
Publication Date:
May 06, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
KUNSHAN BOKE CHEMICALS CO LTD (CN)
International Classes:
C07C231/02; C07C51/41; C07C209/58; C08G69/26
Foreign References:
| CN103613505A | 2014-03-05 | |||
| CN103613505A | 2014-03-05 | |||
| CN103613495A | 2014-03-05 | |||
| CN103613495A | 2014-03-05 | |||
| CN101880235A | 2010-11-10 | |||
| CN101880235A | 2010-11-10 | |||
| CN105339415A | 2016-02-17 | |||
| CN105339415A | 2016-02-17 | |||
| CN109456202A | 2019-03-12 | |||
| CN108727200A | 2018-11-02 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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