Process for synthesis of organometallic compounds

Details Process for synthesis of organometallic compounds Process for synthesis of organometallic compounds

2006-08-29

2006-08-29

Nazario-Gonzalez, Porfirio (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C556S136000, C556S137000, C526S171000, C502S155000

Reexamination Certificate

active

07098355

ABSTRACT:
A method for synthesizing an organometallic compound, which is usefully utilized as a catalyst for manufacturing polyolefins by ring-opening metathesis polymerization of an olefin having strain in a molecule such as dicyclopentadiene or synthesizing epothilones by ring-dosing metathesis reaction, by an efficient and low cost synthesis method using a starting material which is easily available due to relatively simple chemical structure, and further without any possibility of coexistence of a vinylhetero compound or a vinyl compound exchanged which tends to accompany as an impurity in the system in conventional methods, characterized by reacting a starting material comprising a zero-valent transition metal complex (A) or a polyvalent transition metal complex (A′), a compound (B) or (B′) shown by the following general formula (1) or (4), respectively, and a neutral ligand (C) or (C′), in one step under non-reducing condition or reducing condition.in-line-formulae description="In-line Formulae" end="lead"?R1Y1CR2X12  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?R4Y2CR5X22  (4)in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 6306987 (2001-10-01), Van Der Schaaf et al.
patent: 11-262667 (1999-09-01), None
patent: 11-510807 (1999-09-01), None
patent: WO 99/396 (1990-01-01), None
patent: WO 97/6185 (1997-02-01), None

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