360788-73-4

Upstream product

• 351445-20-0 [HC(PPh₂=NSiMe₃)2Li*THF] 
• 59863-12-6 bis[bis(trimethylsilyl)amino]germanium(II) 

Downstream Products

• 14221-01-3 tetrakis(triphenylphosphine) palladium⁽⁰⁾ 
• 868528-45-4 [Me₃SiN=PPh₂)2C=GeCl₂] 
• 622857-99-2 [(Me3SiN=PPh2)2C=Ge(μ-S)]2 
• 622858-03-1 [(Me3SiN=PPh2)2C=Ge(μ-Te)]2 
• 622857-97-0 [(μ-N=Ph2P)(Me3SiN=PPh2)C=Ge(OSiMe3)]2 
• 622858-01-9 [(Me3SiN=PPh2)2C=Ge(μ-Se)]2 
• 869081-22-1 [(Me₃SiN=PPh₂)2((1,5-cyclooctadiene)Rh)C-GeCl] * THF 
• 945682-97-3 [((CH₃)3SiNP(C₆H₅)2)2CGe(ON(C₅H₆(CH₃)4))2] 
• 945682-99-5 [((CH₃)3SiNP(C₆H₅)2)2CGe(O(C₆H₅)CC(C₆H₅)O)] 
• 945682-98-4 [(Me₃SiNPPh₂)2CGe(o-C₆H₄NHNPh)] 
• 1428471-66-2 [(Me₃SiN=PPh₂)₂CGeN(SiMe₃)N=N] 
• 1428471-64-0 [(Me₃SiN=PPh₂)₂(GeCl)CMn(μ-Cl)]₂ 

Relevant academic research and scientific papers

Bis(germavinylidene) [(Me3SiN=PPh2)2C=Ge→Ge=C- (Ph2P=NSiMe3)] and 1,3-Dimetallacyclobutanes [M{(μ2-C(Ph2P=NSiMe3)2} ]2 (M = Sn, Pb)

Low-valent metallavinylidenes :M = C are scarce owing to the low stability of such species. Compound 1, prepared from [CH(Ph2P=NSiMe3)2Li(thf)] and GeCl2·dioxane, represents the first stable bis(germavinylidene)

Synthesis of bisgermavinylidene and its reaction with chalcogens

The lithium complex [HC(PPh2=NSiMe3)2Li(THF)] (2) prepared by the reaction of BunLi with bis(iminophosphorano)methane reacts with GeCl2·dioxane in different stoichiometric ratios to afford [HC(PPh2=NSiMe3)2GeCl] (3) and [(Me3SiN=PPh2)2C=Ge→Ge=C (PPh2=NSiMe3)2] (4), respectively. Bisgermavinylidene 4 can also be obtained by the reaction of 3 with [Ge{N(SiMe3)2}2] or 2. Further reaction of 4 with Me3NO afforded [(μ-N=Ph2P)(Me3-SiN=Ph2P) C=Ge(OSiMe3)]2 (5), and direct reaction of elemental chalcogens (sulfur, selenium, and tellurium) with 4 afforded [(Me3SiN=PPh2)2C=Ge(μ-E)]2 [E = S (6), Se (7), and Te (8)]. X-ray structures of compounds 2-8 have been determined.