US 12,377,406 B2
Catalyst composition for cyclic carbonate production from CO2 and olefins
Kunnigar Vongnam, Nonsang (TH); Nopparat Thavornsin, Pakkred (TH); Pornpen Sae-Ung, Muangnakornpathom (TH); Sophon Kaeothip, Chatuchak (TH); Anucha Euapermkiati, Chatuchak (TH); and Khamphee Phomphrai, Buengkum (TH)
Assigned to PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED, Chatuchak (TH)
Appl. No. 17/764,400
Filed by PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED, Chatuchak (TH)
PCT Filed Sep. 30, 2020, PCT No. PCT/TH2020/000066
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2021/066756, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 1901006270 (TH), filed on Sep. 30, 2019.
Prior Publication US 2022/0401937 A1, Dec. 22, 2022
Int. Cl. B01J 31/22 (2006.01); C07D 317/38 (2006.01)
CPC B01J 31/2243 (2013.01) [C07D 317/38 (2013.01); B01J 2231/70 (2013.01)] 18 Claims
 
1. A catalyst composition for cyclic carbonate production from CO2 and olefins, wherein said catalyst composition comprises:
a) the metal complex as shown in structure (I):

OG Complex Work Unit Chemistry
wherein,
M represents transition metal atom;
R1, R2, and R3 represent independent group selected from hydrogen atom, halogen atom, alkyl group, alkenyl group, alkynyl group, alkoxy group, amine group, phenyl group, benzyl group, cyclic hydrocarbon group comprising hetero atom, perfluoroalkyl group, or nitro group;
R4 represents group selected from alkylene group, cycloalkylene group, or phenylene group;
X represents group selected from halogen atom, acetate group, or triflate group;
b) the halohydrin agent in at least one solvent; and
c) at least one base.