Ru Catalyzed The Reaction Of Alkene And Studies On The Mechanism Of C-H Activation Reactions

We synthesize a series of novel organometallics and study the mechanism of C-H activation reaction. According to the structure of organometallics and the mechanism, we design a catalytic reaction. It covers mainly several aspects: 1. Complex {(C5H4N)(μ3-η5,η2,η1-C9H5CHCH2CH2CH2CH=CH2)}Ru2(CO)4(3) and [(C5H4 N){μ2-η3,η5-C9H5(CCH2CH2CH2CCH2)}]Ru2(CO)4(4), synthesized by the reaction of {(C5H4N)(μ2-η5,η1-C9H5)}Ru3(CO)9(2) with 1,5-hexadiene, could further transform to another diruthenium complex 4 via intramolecular carbometalation. The results are relevant to the mechanism of transition-metal catalyzed heteroatom-directed intramolecular C-H/olefin coupling reactions. 2. We synthesis {(C5H4N)(μ2-η5,η3-C9H5CCH2CH2OCCHCH3)}Ru2(CO)4(5), {(C5H4N)(μ2-η5,η1-C9H5CHCH2CH2SCH2CH=CH2)}Ru2(CO)4(6),{(C5H4N)(μ2-η5,η1-C9H5CHCH2CH2CH=C HCH3)}Ru2(CO)5(7)and{(C5H4N)(μ2-η5,η1-C9H5CHCH2CH2CH2CH=CHCH3)}Ru2(CO)5(8). The results are relevant to the mechanism of olefins’ double bond isomerization and C-H activation reactions. 3. We synthesis {(C5H4N)(μ2-η5,η1-C9H5CHCH2CH2OCH2CH3)}Ru2(CO)5(9), {(C5H4N)(μ2-η5,η1-C9H5CHCH2CH3)}Ru2(CO)5(10),{(C5H4N)(μ2-η5,η1-C9H5C(CH3)2}Ru2(CO)5(11) and {(C5H4N)(μ2-η5,η1-C9H5CHCH3)}Ru2(CO)5(12). The organometallics relevant to the mechanism of Ru catalyzed the cutting of ether bond and offered a new insight into this reaction. 4. According to the organometallics, we design a Ru-catalyzed reaction of 3-pyridyl indene or 2-phenyl pyridine with 1,5-hexadiene, and we get a compound {η1-(C5H4 N)(C9H6)}2Ru2(CO)4and {η1-(C5H4N)(C6H4)}2Ru(CO)2, and this compound do not react with 1,5-hexadiene, the results would clarify the mechanism of relevant Ru catalyzed C-H activation reaction.