Name: Chloro(1,5-cyclooctadiene)(pentamethylcyclopentadienyl)ruthenium. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Chloro(1,5-cyclooctadiene)(pentamethylcyclopentadienyl)ruthenium, is researched, Molecular C18H28ClRu, CAS is 92390-26-6, about Ruthenium-catalyzed cyclizations of enynes via a ruthenacyclopentene intermediate: Development of three novel cyclizations controlled by a substituent on alkyne of enyne. Author is Saito, Nozomi; Tanaka, Daisuke; Mori, Miwako; Sato, Yoshihiro.
A review. Three novel ruthenium-catalyzed cyclizations of enynes were developed. In each cyclization, a ruthenacyclopentene derived from enyne and Cp*RuCl(cod) is a common intermediate. When an enyne having an alkyl, an ester, or a formyl group on an alkyne was treated with Cp*RuCl(cod) under and ethylene gas atm., ethylene was inserted into the ruthenium-sp2 carbon bond of ruthenacyclopentene to afford ruthenacycloheptene and β-hydrogen elimination followed by reductive elimination occurred to give a cyclic compound having a 1,3-diene moiety. When an acyl group was placed on the alkyne, the carbonyl oxygen coordinated to the ruthenium metal of ruthenacyclopentene to produce a ruthenium carbene complex, which reacted with ethylene to give a cyclic compound having a cyclopropane ring on the substituent. On the other hand, when the substituent on the alkyne was 4-pentynyl, insertion of an alkene part into ruthenacyclopentene followed by reductive elimination gave a tricyclic compound by a ruthenium-catalyzed [2+2+2] cyclization of diene and an alkyne. DOI 10.1002/tcr.201100003.
The article 《Ruthenium-catalyzed cyclizations of enynes via a ruthenacyclopentene intermediate: Development of three novel cyclizations controlled by a substituent on alkyne of enyne》 also mentions many details about this compound(92390-26-6)Name: Chloro(1,5-cyclooctadiene)(pentamethylcyclopentadienyl)ruthenium, you can pay attention to it, because details determine success or failure
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Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method