Title:
METHOD FOR PREPARING DIESTER BY OXIDATIVE CARBONYLATION OF OLEFIN AND CARBON MONOXIDE
Document Type and Number:
WIPO Patent Application WO/2024/066532
Kind Code:
A1
Abstract:
A method for preparing a diester by oxidative carbonylation of an olefin and carbon monoxide, which comprises the following steps: carrying out an oxidative carbonylation reaction on olefin and carbon monoxide in an oxygen-containing atmosphere and in the presence of a catalyst to obtain a 1,4-diester-based compound; the catalyst comprises a procatalyst, a pro-oxidant, an acid, and a dehydrating agent; and the procatalyst is a substance comprising the element Pd; the pro-oxidant comprises one or more among copper salt, iron salt, and iron powder; the acid comprises Lewis acid and/or protonic acid; and the dehydrating agent comprises one or more among a ketal, an acetal, orthoformate, and silicate. The present method has high catalytic efficiency, high selectivity, and a high conversion rate; oxygen or air is used as an oxidizing agent; the catalyst is a green, low-carbon, environment-friendly catalytic system that can be reused, is low-cost, and produces essentially no waste in the production process; and the oxidative carbonylation reaction of the catalyzed olefin and CO prepares the 1,4-diester compound.
Inventors:
LI SUHUA (CN)
MENG BINGYIN (CN)
MENG BINGYIN (CN)
Application Number:
PCT/CN2023/102612
Publication Date:
April 04, 2024
Filing Date:
June 27, 2023
Export Citation:
Assignee:
UNIV SUN YAT SEN (CN)
International Classes:
C07C67/38; C07C69/34; C07C69/38; C07C69/40; C07C69/44; C07C69/48; C07C69/602; C07C69/608; C07C69/612; C07C69/63; C07C69/65
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
Download PDF: