Patent · US Expired

Polymeric homogeneous catalysts

US6403522B1 · kind B1 · utility

10Cited by
5References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 21, 2000
Grant dateJun 11, 2002
Priority date
Expiry dateApr 21, 2020

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G61/08
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A homogenous catalyst is prepared by reacting a ruthenium or molybdenum carbene catalyst of formula (I): in a non-reactive organic solvent or solvent mixture with a bicyclic olefin of formula (II): whereinX is O, NR1, C(R1)2, S, POR6, or PR6;R1 and R2 independently of each other, are H, (C1-C8)-alkyl, (C2-C8)-alkenyl, (C2-C8)-alkynyl, (C6-C18)-aryl, (C7-C19)-aralkyl, (C3-C18)-heteroaryl, (C4-C19)-heteroaralkyl, (C3-C8)-cycloalkyl, (C3-C8)-cycloalkenyl, (C6-C18)-aryl-(C1-C8)-alkyl, (C3-C18)-heteroaryl-(C1-C8)-alkyl, (C3-C8) -cycloalkyl-(C1-C8)-alkyl, or (C1-C8)-alkyl-(C3-C8)-cycloalkyl, or form together an ═O group;R3 and R4, independently of each other are OR1, SR1, NR12, OR7, SR7, or NR1R7 provided that at least one residue R3 or R4 bears a group R7,R6 is R1, provided that R6 is not H;R7 is a catalytically active group,and optionally with a further olefinic compound (III).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.