US 12,221,458 B2
Organic borate-based catalyst, method for preparing isobutene oligomer using the same and isobutene oligomer prepared thereby
Gyeong Shin Choi, Daejeon (KR); Ji Hyun Choi, Daejeon (KR); Won Hee Kim, Daejeon (KR); Jin Lee, Daejeon (KR); Dong Hyun Jo, Daejeon (KR); and Jeong Sik Kim, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 17/601,544
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Aug. 19, 2020, PCT No. PCT/KR2020/010872
§ 371(c)(1), (2) Date Oct. 5, 2021,
PCT Pub. No. WO2021/034041, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 10-2019-0101203 (KR), filed on Aug. 19, 2019; and application No. 10-2019-0101204 (KR), filed on Aug. 19, 2019.
Prior Publication US 2022/0204533 A1, Jun. 30, 2022
Int. Cl. B01J 31/02 (2006.01); B01J 31/14 (2006.01); B01J 31/16 (2006.01); C07F 5/02 (2006.01); C07F 7/18 (2006.01); C08F 110/10 (2006.01)
CPC C07F 5/027 (2013.01) [C07F 7/1804 (2013.01); C08F 110/10 (2013.01)] 11 Claims
 
1. An organic borate-based catalyst comprising a compound represented by Formula 1 and a hydroxyl group-containing compound, wherein
a silicon atom (Si) of the compound represented by Formula 1 and an oxygen atom (O) of the hydroxyl group-containing compound form a covalent bond:

OG Complex Work Unit Chemistry
in Formula 1,
each R0 is independently hydrogen, an alkyl group of 1 to 20 carbon atoms, an alkoxy group of 1 to 20 carbon atoms, an aryl group of 6 to 20 carbon atoms or an aryloxy group of 6 to 20 carbon atoms,
R1 to R4 are each independently hydrogen, a halogen group or an alkyl group of 1 to 20 carbon atoms, and
o, p, q and r are each independently an integer of 1 to 5,
wherein the hydroxyl group-containing compound is a compound represented by Formula 2:

OG Complex Work Unit Chemistry
in Formula 2,
R5 to R7 are each independently hydrogen, a hydroxyl group, a hydroxyalkyl group of 1 to 20 carbon atoms, an alkyl group of 1 to 20 carbon atoms, an alkenyl group of 2 to 20 carbon atoms, an alkynyl group of 2 to 20 carbon atoms, a cycloalkyl group of 3 to 20 carbon atoms, an aryl group of 6 to 20 carbon atoms, a heteroaryl group of 5 to 20 carbon atoms, an alkoxy group of 1 to 20 carbon atoms, an aryloxy group of 6 to 20 carbon atoms, an alkylaryl group of 7 to 20 carbon atoms or an arylalkyl group of 7 to 20 carbon atoms, provided that at least two of R5 to R7 are not hydrogen, and one of R5 to R7 is an aryl group of 6 to 20 carbon atoms, a heteroaryl group of 5 to 20 carbon atoms, or an aryloxy group of 6 to 20 carbon atoms.