Reactions of ruthenium cyclopropenyl complexes with trimethylsilyl azide

Reactivity of Ruthenium Vinylidene Complexes Containing Indenyl/dppe Ligands and Unsaturated Bonds at Cd with Trimethylsilyl Azide

“…In the Cp system, similar products can be obtained via the reaction of cyclopropenyl complex containing a phenyl group at Cγ, but the N -coordinated ruthenium complex product containing N 3 − counter anion is unstable. An exchange of the N 3 − with PF 6 − stabilized the N -coordinated complex [ 36 , 37 ]. Ruthenium vinylidene complexes containing Cp and PPh 3 ligands have been reported.…”

“…The synthesis and chemical reactivity of several neutral rutheniumcyclopropenyl complexes in which the metal bonds to one sp 2 carbon atom of the three-membered cyclopropenyl ring in the Cp system have been reported [ 37 , 56 , 57 , 58 ]. These cyclopropenylruthenium complexes can be prepared via deprotonation reaction of their vinylidene precursor.…”

Synthesis and reactivity of ruthenium tetrazolate complexes containing a tris(pyrazolyl)borato (Tp) ligand

“…In the 1 H NMR spectrum of 6a, the dd resonance at d 4.54 and 4.49 are assigned to the methyne proton and two resonances displaying doublets of an AB pattern at d 3.19, 2.94 and d 3.02, 2.76 are assigned to the diastereotopic methylene group of major and minor isomers, respectively. By comparing the spectroscopic data of 6a with that of the Cp analogue, it is clear that the organic ligands are the same [14].…”

“…Two singlet 31 P NMR resonances at d 53.7 and 53.5 are assigned to the major and minor isomer, respectively. The protonation might have occurred at one of two nitrogen atoms next to the unique carbon of the tetrazolate ring because of localization of the negative charge at these two nitrogen atoms in 9a [14]. Similarly, preparation of the cationic tetrazolate complex {(C 3 H 3 NNH)[Ru]-N 4 (R)CCH(Ph)CH 2 CN} + (12a, R = CH 3 , 12b, R = C 6 H 5 CH 2 ) have all been accomplished by reacting 9a with the corresponding halides resulting in electrophilic addition with high yields.…”

“…During the course of investigations into ruthenium cyclopropenyl chemistry, we previously established the formation of interesting neutral ruthenium tetrazolate complex [14]. For example, the cyclopropenyl complex Cp(PPh 3 ) 2 Ru-C@C(Ph)CHCN was found to react with an excess amount of Me 3 SiN 3 to afford the zwitterionic tetrazolate complex Cp(PPh 3 ) 2 Ru-N 4 CCH(Ph)CH 2 CN.…”