149883-29-4

Basic information

• Product Name: Mo{NC₆H₃(CH(CH₃)2)2}{CHC(CH₃)2C₆H₅}{OC(CH₃)(CF₃)2}2
• CAS NO: 149883-29-4
• Molecular Weight: 765.534
• Mol File: 149883-29-4.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: Mo{NC₆H₃(CH(CH₃)2)2}{CHC(CH₃)2C₆H₅}{OC(CH₃)(CF₃)2}2(CAS DataBase Reference)
• NIST Chemistry Reference: Mo{NC₆H₃(CH(CH₃)2)2}{CHC(CH₃)2C₆H₅}{OC(CH₃)(CF₃)2}2(149883-29-4)
• EPA Substance Registry System: Mo{NC₆H₃(CH(CH₃)2)2}{CHC(CH₃)2C₆H₅}{OC(CH₃)(CF₃)2}2(149883-29-4)

Safety Data

• Hazardous Substances Data: 149883-29-4(Hazardous Substances Data)

Upstream product

• 1515-14-6 1,1,1,3,3,3-hexafluoro-2-methylpropan-2-ol 
• 645391-49-7 Mo(N-2,6-i-Pr2C6H3)(CHCMe2Ph)(OTf)2(DME) 
• 98171-13-2 1,1,1,3,3,3-hexafluoro-2-methylpropoxylithium 
• 149883-29-4 Mo(CHC(CH₃)2C₆H₅)(NC₆H₃(CH(CH₃)2)2)(OC(CH₃)(CF₃)2)2 

Downstream Products

• 149883-29-4 Mo{NC₆H₃(CH(CH₃)2)2}{CHC(CH₃)2C₆H₅}{OC(CH₃)(CF₃)2}2 
• 910650-09-8 (C₆H₅)3PCH₃⁽¹⁺⁾*[Mo(NC₆H₃(CH(CH₃)2)2)(CC(CH₃)2C₆H₅)(OC(CF₃)2CH₃)2]^(1-)=C₁₉H₁₈P[Mo(NC₆H₃(C₃H₇)2)(CC₉H₁₁)(OC(CF₃)2CH₃)2] 
• 887329-89-7 Mo{1-methylidene-3-methylene-5,5-bis(carboxyethyl)cyclohex-1-ene}(N-2,6-i-Pr₂C₆H₃)(OCMe(CF₃)2)2 
• 143718-44-9 [Mo(N(2,6-(i)Pr₂C₆H₃))(CHCMe₂Ph)(tert-butoxide)(hexafluoro-tert-butoxide)] 

Relevant articles and documents

Synthesis and reactivity of molybdenum imido alkylidene bis-pyrazolide complexes

Reaction of Li(3,5-R2-pyrazolide) (R = tBu or Ph, dXpz) with Mo(NAr)(CHCMe2Ph)(OTf)2(DME) yields Mo(NAr)(CHCMe 2Ph)(dXpz)2 in good yield. These complexes react with alcohols or the surface silanols of silica, to yield bis-alkoxy and surface mono-siloxy alkene metathesis catalysts, respectively.

Dipyrrolyl precursors to bisalkoxide molybdenum olefin metathesis catalysts

Addition of 2 equiv of lithium pyrrolide to Mo(NR)(CHCMe 2R′)(OTf)2(DME) (OTf = OSO2CF 3; R = 2,6-i-Pr2C6H3, 1-adamantyl, or 2,6-Br2-4-MeC6H2; R′ = Me or Ph) produces Mo(NR)(CHCMe2R′)(NC4H4) 2 complexes in good yield. All compounds can be recrystallized readily from toluene or mixtures of pentane and ether and are sensitive to air and moisture. An X-ray structure of a 2,6-diisopropylphenylimido species shows it to be an unsymmetric dimer, {Mo(NAr)(syn-CHCMe2Ph) (η5-NC4H4)(η1-NC 4H4)}{Mo(NAr)(syn-CHCMe2Ph)(η1- NC4H4)2}, in which the nitrogen in the η5-pyrrolyl bound to one Mo behaves as a donor to the other Mo. All complexes are fluxional on the NMR time scale at room temperature, with one symmetric species being observed on the NMR time scale at 50 °C in toluene-d8. The dimers react with PMe3 (at Mo) or B(C 6F5)3 (at a η5-NC 4H4 nitrogen) to give monomeric products in high yield. They also react rapidly with 2 equiv of monoalcohols (e.g., Me3COH or (CF3)2MeCOH) or 1 equiv of a biphenol or binaphthol to give 2 equiv of pyrrole and bisalkoxide or diolate complexes in ～100% yield.

Rate of interconversion of syn and anti rotamers of Mo(CHCMe2Ph)(NAr)(OR)2 and relative reactivity toward 2,3-bis(trifluoromethyl)norbornadiene

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