Catalytic system for preparation of high branched alkane from olefins
AssigneeShanghai Institute of Organic Chemistry, Chinese Academy of Sciences
InventorsYong Tang, Wenjie Tao, Xiuli Sun, Junfang Li, Zheng Wang
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Abstract
The present invention discloses a catalytic system for preparing highly branched alkane from olefin, which contains novel nickel or palladium complexes. In the presence of the catalytic system, highly branched oily alkane mixture can be efficiently obtained from olefins (such as ethylene) under mild conditions. The alkane mixture has a low bromine number, and can be used as a processing aid(s) and lubricant base oil with high-performance. Provides also was a method for preparing the catalyst and a method for preparing an oily olefin polymer.
Claims26
A compound of formula I,
- wherein,
- Z is hydrogen, C1-C4 alkyl or C1-C4 haloalkyl, unsubstituted or substituted phenyl;
- Y is unsubstituted or substituted phenyl;
- or Z and Y together with the adjacent carbon atom form an unsubstituted or substituted group selected from the following group:
- acenaphthyl, phenanthryl, and C5-C8 cycloalkyl, wherein the substituted phenyl, acenaphthyl, phenanthryl or cycloalkyl has 1 to 5 substituents selected from the following group:
- halogen, C1-C4 alkyl and C1-C4 haloalkyl;
- R1 and R2 are independently H, halogen, C1-C8 alkyl, C1-C8 haloalkyl, unsubstituted or substituted phenyl, —O—Ra, —CH2—O—Ra, —SRb or —CH2—S—Rb, wherein Ra and Rb are independently C1-C8 alkyl, unsubstituted or substituted phenyl;
- R3 and R4 are independently H, halogen, C1-C8 haloalkyl, —O—Ra, —CH2—O—Ra SRb or —CH2—S—Rb, wherein Ra and Rb are independently C1-C8 alkyl, unsubstituted or substituted phenyl;
- and provided that of R1, R2, R3 and R4, R1≠(R3 and R4) and/or R2≠(R3and R4);
- the substituted phenyl has 1 to 5 substituents selected from the following group:
- halogen, C1-C4 alkyl and C1-C4 haloalkyl;
- R5, R6 and R7 are independently halogen, nitro, hydrogen, C1-C8 alkyl, C1-C8 haloalkyl, —O—Ra, or —CH2—O—Ra, wherein Ra is C1-C8 alkyl, unsubstituted or substituted phenyl;
- the substituted phenyl has 1 to 5 substituents selected from the following group:
- halogen, C1-C4 alkyl and C1-C4 haloalkyl.
An oily polyolefin, wherein, possessing the following characteristic:
- there is 100-500 methyl per 1000 methylene, and the molecular weight is 300-500,000 g/mol.
An oily alkane mixture, wherein, possessing the following characteristic:
- there is 100-500 methyl per 1000 methylene and the bromine number is less than 0.5 g/100 g.
An oily alkane mixture, wherein, possessing the following characteristic:
- (a) the viscosity index is 100 to 300;
- (b) the pour point is −50° C. to −10° C.;
- (c) the molecular weight is 300 to 500,000 g/mol;
- and
- (d) there is 100 to 500 methyl per 1000 methylene.
Dependencies are inferred from the claim text.