180386-43-0

Upstream product

• 544-97-8 dimethyl zinc(II) 
• 7647-01-0 hydrogenchloride 
• 166903-87-3 (pentamethylcyclopentadienyl)TaMe(N(2,6-Me2C6H3))(η(1)-N(2,6-Me2C6H3)C(Me)=CMe2) 

Downstream Products

• 207689-82-5 (η(5)-pentamethylcyclopentadienyl)Ta(Me)(CH2SiMe3)(NC6H3Me2-2,6) 
• 207689-88-1 (η(5)-pentamethylcyclopentadienyl)Ta(CH3)(2-(CH2NMe2)C6H4)(NC6H3Me2-2,6) 
• 207689-89-2 (η(5)-pentamethylcyclopentadienyl)Ta(CH3)(2-(CH2Ph)NC6H3Me2-2,6) 
• 180386-53-2 (pentamethylcyclopentadienyl)TaCl(N(2,6-Me2C6H3))(η(2)-C(Me)=N(2,6-Me2C6H3)) 
• 229635-34-1 [Ta(C₅(CH₃)5)(CH₃)(N(CH₃)2)(NC₆H₃(CH₃)2)] 
• 207689-85-8 (η(5)-pentamethylcyclopentadienyl)Ta(CH3)(CH2CMe3)(NC6H3Me2-2,6) 
• 229635-35-2 [Nb(η(5)-C5Me5)Me(N(i)Pr2)(N-2,6-Me2C6H3)] 
• 180386-48-5 (pentamethylcyclopentadienyl)TaCl(O)(η(2)-C(Me)=NC6H3Me2) 
• 180386-47-4 (pentamethylcyclopentadienyl)TaCl(N(2,6-Me2C6H3))(η(2)-C(Me)=O) 

Relevant academic research and scientific papers

Alkyl chloro, dialkyl and mixed alkyl derivatives of imido(pentamethylcyclopentadienyl) tantalum(V). X-ray crystal structure of [TaCp*Cp′Cl{N(2,6-Me2C6H3)}], (Cp′=η5-C5H4SiMe3]

[TaCp*Cl2{N(2,6-Me2C6H 3)}] (Cp=η5-C5Me5) reacts with one equivalent of LiR (R=CH2SiMe3, CH2CMe2Ph, CH2CMe3, 2-(CH2NMe2)C6H4, C5H4SiMe3) or 0.5 equivalents of Mg(CH2C6H5)2(THF)2 to give the alkyl chloro complexes [TaCp*ClR{N(2,6-Me2C6H3)}],(R=CH 2SiMe3, 1; CH2CMe2Ph, 2; CH2CMe3, 3; CH2C6H5, 4; 2-(CH2NMe2)C6H4, 5; C5H4SiMe3, 6). When the same reaction was carried out with two equivalents of lithium or one equivalent of magnesium reagent, the corresponding dialkyl derivatives [TaCp*R2{N(2,6-Me2C6H 3)}],(R=CH2SiMe3, 7; CH2CMe2Ph, 8; C6H5, 9; CH2C6H5, 10; CH2CMe3, 11) were obtained. The mixed alkyl derivatives [TaCp*MeR{N(2,6-Me2C6H3)}], (R=CH2SiMe3, 12; CH2CMe2Ph, 13; C6H5, 14; CH2CMe3, 15; 2-(CH2NMe2)C6H4, 16; CH2C6H5, 17; C5H4SiMe3, 18) have been prepared by treatment of solutions containing [TaCp*ClMe{N(2,6-Me2C6H3)}] with one equivalent of lithium or 0.5 equivalents of magnesium reagent. All the new complexes were characterized by the usual IR and NMR spectroscopic methods. The crystal structure of 6 was determined by X-ray diffraction studies. Crystals of 6 are monoclinic, space group P21/c, with Z=4 in a unit cell of dimensions a=12.597(3), b=11.338(2), c=18.297(4) A and β=96.53(3)°. The structure was solved from diffractometer data by a combination of direct and Fourier methods and refined by full-matrix least squares fit on the basis of 4846 observed reflections to R1 and wR2 values of 0.0224 and 0.0574, respectively.

Insertion of CO and CNR into tantalum-methyl bonds of imido(pentamethylcyclopentadienyl)tantalum complexes. X-ray crystal structures of [TaCp*(NR)-Me{η2-C(Me)=NR}] and [TaCp*Cl(O){η2-C(Me)=NR}] (R = 2,6-Me2C6H

[TaCp*Cl2{N(2,6-Me2C6H 3)}] reacts with 2 equiv of LiMe at -78 °C to give the imido dimethyl complex TaCp*Me2{N(2,6-Me2C6H3)} (1) in almost quantitative yield, whereas