In an article, published in an article, once mentioned the application of 246047-72-3, Name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium,molecular formula is C46H65Cl2N2PRu, is a conventional compound. this article was the specific content is as follows.name: (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium
Efforts to link phosphinimide and cyclopentadienyl ligands via metathesis were undertaken. To this end, the allylic phospnimine T-Bu2(CH 2=CHCH2C(Me2)PNSiMe3 (1) and the Ti complexes T-Bu2(CH2= CHCH2C(Me 2)PNTi(CCl2(2)t-Bu2=CHCH 2C(Me2)PNTi(C5mE5)Cl2(3), andt- Bu2(CH2=CHCH2C(Me2)PNTi- (C5H4CH2CH=CH2)Cl2 (4) were prepared. Attempts to effect olefin metathesis on 4 using either [Cl 2(PCy3)2Ru=CHPh] or [Cl2(PCy 3)(H2IMes)Ru=CHPh] as the catalyst were unsuccessful. Alternatively, the phosphinimine t-Bu2(CH2=CHCH 2)PNSiMe3 (5) was found to undergo olefin isomerization upon conversion to the phosphinimines t-Bu2(MeCH=CH)PNH (6) and i-Bu2(MeCH=CH)PNTi(NMe2)3 (7), T-Bu 2(MeCH=CH)POTiCl3 (8), and T-Bu2(MeCH=CH) POTiCl3(THF) (8 · THF). Direct reaction of 5 with TiCl 4 gave t-Bu2(CH2=CHCH2)PNTiCl 3 (9), which was readily converted to t-Bu2(CH 2=CHCH2)PNTi-(C5H4C(Me)=CH 2)Cl2 (10). Repeated attempts to effect a ring closure by olefin metathesis resulted in no reaction. However, the species t-Bu 2(CH2=CHCH2)PNTi(CpCH2CH=CH 2)Cl2 (11) was readily methylated to give t-Bu 2(CH2=CHCH2)PNTi(CpCH2CH=CH 2)Me2 (12), and 11 in the presence of [Cl 2(PCy3)2Ru=CHPh] underwent olefin metathesis to give T-Bu2(CpCH2CH=CHCH2)PNTiCl2 (13). Subsequent reaction with 9-BBN gave t-Bu2(CpCH2CH 2CH(B(C8H14)CH2)PNTiCl2 (14), while alkylation gave t-Bu2(CpCH2CH= CHCH 2)PNTiMe2 (15). In a similar fashion, the species t-Bu 2(C5Me4CH2CH=CHCH 2)PNTiCl2 (20), T-Bu2(C5Me 4CH2CH=CHCH2)PNTiMe2 (21), T-Bu 2(C9H6CH2CH=CHCH2) PNTiCl2 (24), and T-Bu2(C9H6CH 2CH=CHCH2)PNTiMe2 (25) were prepared. A number of these compounds were screened for their ability to effect olefin polymerization using MAO, B(C6F5)3, or [Ph 3C][B(C6F5)4] as the activator. In general, active single-site catalysts were obtained, yielding high molecular weight polyethylene, although the activities were lower with MAO than with boron-based activators. Crystal structures of 3, 8 ·THF, 13, 15, and 20 are reported.
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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI