In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Study on the Reactivity of Oxabicyclic Alkenes in Ruthenium-Catalyzed [2+2] Cycloadditions, published in 2007-09-14, which mentions a compound: 92390-26-6, mainly applied to ruthenium catalyst cycloaddition bicyclic alkene alkyne; oxabicyclic alkene cycloaddition alkyne ruthenium catalyst, Reference of Chloro(1,5-cyclooctadiene)(pentamethylcyclopentadienyl)ruthenium.
The ruthenium-catalyzed [2+2] cycloadditions of various bicyclic alkenes with an alkyne have been investigated. The presence of the oxygen in the bridgehead of the bicyclic alkene significantly enhanced the rate of the ruthenium-catalyzed [2+2] cycloadditions The presence of a C1-substutuent on the oxanorbornadiene decreased the rate of the cycloaddition and electron-withdrawing C1-substutuents were found to be more reactive than electron-donating C1-substutuents in the Ru-catalyzed [2+2] cycloaddition The nature of the substituent on the benzene ring of oxabenzonorbornadienes showed little effect on the rate of the cycloaddition
There is still a lot of research devoted to this compound(SMILES：[Cl-][Ru+2]1234567(C8(C)=C4(C)[C-]5(C)C6(C)=C87C)[CH]9=[CH]1CC[CH]2=[CH]3CC9)Reference of Chloro(1,5-cyclooctadiene)(pentamethylcyclopentadienyl)ruthenium, and with the development of science, more effects of this compound(92390-26-6) can be discovered.
Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method