| 摘要 |
This invention relates to a metathesis catalyst compound comprising an asymmetrically substituted N-heterocyclic carbene (NHC) metathesis catalyst and a process to make linear alpha-olefins comprising contacting a feed material and an optional alkene (such as ethylene) with said catalyst, where the feed material is a triacylglyceride, fatty acid, fatty acid alkyl ester, and/or fatty acid ester, typically derived from biodiesel. |
| 主权项 |
1. A metathesis catalyst compound represented by the formula: where: M is a Group 8 metal; X1 and X2 are, independently, any anionic ligand, or X1 and X2 may be joined to form a dianionic group and may form a single ring of up to 30 non-hydrogen atoms or a multinuclear ring system of up to 30 non-hydrogen atoms; L may be joined to R7 and/or R8 and is L*(R)q-1 when L is not bound to R7 or R8 or L is L*(R)q-2 when L is bound to R7 or R8, where q is 1, 2, 3, or 4 depending on the valence of L* (which may be 2, 3, 4, or 5) and L* is N, O, P, or S, and R is hydrogen or a C1 to C30 substituted or unsubstituted hydrocarbyl; R3, R4, R5, R6, R7, and R8 are, independently, hydrogen or a C1 to C30 substituted or unsubstituted hydrocarbyl; wherein any two adjacent R groups may form a single ring of up to 8 non-hydrogen atoms or a multinuclear ring system of up to 30 non-hydrogen atoms; R1 is a substituted phenyl; and R2 is n-butyl, pentyl, hexyl, or cyclohexylmethyl; provided that when R7 and R8 form an unsubstituted phenyl group and R1 is mesityl, then R2 is pentyl, hexyl, or cyclohexylmethyl. |
