154560-07-3

Upstream product

• 98065-07-7 {Zr(OC₆H₃t-Bu₂-2,6)2(CH₃)2} 
• 122-66-7 diphenyl hydrazine 

Downstream Products

• 129916-68-3 {Zr(OC₆H₃t-Bu₂-2,6)2(phenylamido)2} 
• 154560-09-5 [(OC₆H₃(C(CH₃)3)2)2Zr(C₆H₃(CH₃)2NCCH₃)(C₆H₅NHNC₆H₅)] 
• 154560-10-8 [(OC₆H₃(C(CH₃)3)2)2Zr(C(CH₃)3NCCH₃)(C₆H₅NHNC₆H₅)] 

Relevant academic research and scientific papers

Synthesis and reactivity of zirconium hydrazido complexes containing aryloxide ligation

The reaction of [(ArO)2Zr(Me)2] (ArO = 2,6-di-tert-butylphenoxide) with PhNHNHPh (1 equiv) leads to [(ArO)2Zr(Me)(η2-NPhNHPh)] (1) and 1 equiv of methane. Heating a C6D6 solution of 1 generates [Zr{OC6H3(But)C(CH3) 2CH}(OAr)(NPhNHPh)] (2) via cyclometalation of a tert-butyl group of the aryloxide ligand (1H NMR). Addition of 4-pyrrollidinopyridine (>2 equiv, py′) to 1 results in the formation of the η2-azobenzene complex [(ArO)2Zr(η2-N2Ph 2)-(py′)2] (3) with the elimination of methane. Solutions of 3 in C6D6 slowly convert to the terminal imido complex [(ArO)2Zr(=NPh)(py′)2] and free azobenzene. Reaction of 1 with organic isocyanides (1 equiv of RNC; R = But, 2,6-Me2C6H3) produces a mixed hydrazido, iminoacyl complex [(ArO)2Zr(η2-NPhNHPh)(η2-MeCNR)], R = But (4a), 2,6-Me2C6H3 (4b). Compound 4a crystallizes in space group P21/c with a = 19.666(5) A?, b = 12.166(3) A?, c = 19139(3) A?, β = 108.01(2)°, and Z = 4. The solid state structure of 4a shows both the hydrazido and iminoacyl groups to be η2-bound to the metal with an PhN-NHPh distance of 1.47(2) A? and ButN-CMe distance of 1.26(2) A?.