1239426-11-9

Basic information

• Product Name: chloro(ethyl)bis(2,4,6-trimethylphenyl)germanium
• CAS NO: 1239426-11-9
• Molecular Weight: 375.477
• Mol File: 1239426-11-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: chloro(ethyl)bis(2,4,6-trimethylphenyl)germanium(CAS DataBase Reference)
• NIST Chemistry Reference: chloro(ethyl)bis(2,4,6-trimethylphenyl)germanium(1239426-11-9)
• EPA Substance Registry System: chloro(ethyl)bis(2,4,6-trimethylphenyl)germanium(1239426-11-9)

Safety Data

• Hazardous Substances Data: 1239426-11-9(Hazardous Substances Data)

Upstream product

• 865-49-6 chloroform-d1 
• 1239426-13-1 ([(i-Pr)2C₃N₂Me₂]Ge(2,4,6-trimethylphenyl)2Et)I 

Relevant articles and documents

Reactivity studies of N-heterocyclic carbene complexes of germanium(II)

The chemistry of three N-heterocyclic carbene (NHC) complexes of GeR 2, where R = Cl (1), OtBu (2), Mes (3) (Mes = 2,4,6-trimethylphenyl), toward 2,3-dimethylbutadiene (DMB), 3,5-di-tert- butylorthoquinone, methyl iodide, pivalic acid, and benzophenone is reported. Upon heating, 2 and 3 cyclize with DMB to yield a germacyclopentene and free NHC. In contrast, 1 does not react with DMB. PB1PBE/6-311+G(d,p) model chemistry shows that the cycloaddition reactions of NHC-GeX2 (X = F, Cl) with butadiene are not thermodynamically favorable. 3,5-Di-tert-butylorthoquinone reacts rapidly with 1-3 to form cyclic products; in the case of 1 and 2, the NHC remains coordinated to the germanium, resulting in a hypervalent species. Compounds 1-3 react with methyl iodide by displacement of I-; in each case [NHC-GeR2Me]+ is produced. Only compound 3 reacts in a controlled fashion with pivalic acid; both 1:1 and 1:2 adducts were characterized. Benzophenone failed to react with 1 or 2 but did undergo cycloaddition with 3. In comparison with uncomplexed GeR2 species, the NHC-GeR2 complexes are less reactive. The prospect of using NHC-GeR2 as a synthon for GeR2 appears to be reaction specific.