Welcome to LookChem.com Sign In|Join Free

CAS

  • or

21907-59-5

Post Buying Request

21907-59-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

21907-59-5 Usage

General Description

Trimethyl(trifluoromethyl)germane is a compound consisting of a germanium atom bonded to three methyl groups and one trifluoromethyl group. It is a colorless and highly flammable liquid with a strong garlic-like odor. This chemical is mainly used as a reagent in organic synthesis, specifically in the formation of carbon-germanium bonds and in the production of organogermanium compounds. Trimethyl(trifluoromethyl)germane is also utilized in the semiconductor industry as a precursor for germanium-containing thin films used in electronic devices. Additionally, it is known to be highly reactive and should be handled with care due to its flammability and potential health hazards.

Check Digit Verification of cas no

The CAS Registry Mumber 21907-59-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,0 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21907-59:
(7*2)+(6*1)+(5*9)+(4*0)+(3*7)+(2*5)+(1*9)=105
105 % 10 = 5
So 21907-59-5 is a valid CAS Registry Number.

21907-59-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name trimethyl(trifluoromethyl)germane

1.2 Other means of identification

Product number -
Other names Trifluormethyl-trimethylgermanium

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:21907-59-5 SDS

21907-59-5Downstream Products

21907-59-5Relevant articles and documents

Electrochemical and chemical syntheses of trifluoromethylating reagents and trifluoromethyl substituted compounds

Grobe, Joseph,Hegge, Joachim

, p. 1975 - 1990 (2008)

The electroreduction of the halofluoromethanes CF3Br, CF 2Br2 and CF2BrCl has been studied in high-pressure stainless steel autoclaves at different cathodes [Pt, steel (V2A, V4A), glassy carbon (GC)] and in various solvent-supporting electrolyte systems (SSE), e.g. DMF/[Bu4N]Br, NMP/[Bu4N]BF4 etc.. The reduction potentials for CF3Br increase from Pt (-1.6 V) 2Br2 and CF2BrCl suggesting a reductive cleavage of C-X bonds as the first step. CF2Br2 and CF2BrCl show a two-step reduction in accord with the C-X bond energies (C-F > C-Cl > C-Br) and the Perfluoro-effect . The electrolysis of CF3Br in different SSE-systems with sacrificial zinc or cadmium anodes has been reinvestigated with our experimental set-up to elucidate the influence of the experimental conditions on the type and ratio of the products. The observed products CF 3MBr·2L and (CF3)2M·2L (M = Zn, Cd; L = DMF or AN) are the same as in the previous investigations, but are obtained in different ratios, as a rule caused by a parallel chemical corrosion of the respective anodes. By using aluminium as sacrificial anode no CF 3Al compounds are formed. The CF3 species generated by electroreduction of CF3Br react with the solvents via hydrogen abstraction and formation of CF3H. The current yield with respect to the dissolution of the Al anode reaches 120 % indicating a considerable chemical corrosion in addition to the anodic oxidation. This result enabled a one-pot trifluoromethylation reaction of NMP as organic carbonyl substrate and solvent with CF3Br and aluminium powder (ratio 3 : 2) at higher temperatures (> 70°C). The complete reaction of CF3Br to give CF3H and 1-methyl-2-trifluoromethyl-4,5-dihydropyrrol allowed the isolation of the latter by vacuum condensation and distillation in 45 % yield, rel. to the CF 3Br used. Gallium and indium were also applied as sacrificial anodes in combination with CF3Br as substrate. In both cases, anodic current yields of about 280 % indicated an extreme chemical corrosion together with cathodic metal depositions corresponding to the cathodic current yield. These deposits - in contrast to those of Zn and Cd - do not react with CF 3Br in Grignard-type conversions to CF3Ga and CF 3In compounds. So, the observed products (CF3) nMBr3-n·L (M = Ga, In; n 1-3; L = DMF, NMP) are obviously formed by chemical corrosion of the electro-activated anodes. Finally, electrochemical and chemical trifluoromethylations were successfully carried out, using R3SiCl (R = Me, Vi, Ph), Me3M′Cl (M′ = Ge, Sn) and aluminium anodes or Al-powder. The products were characterized either after isolation or in the product solutions by NMR-spectroscopic investigations.

(TRIFLUOROMETHYL)GERMANES. PREPARATION AND PROPERTIES OF (CF3)2GeHX (X = H, D, F, Cl, Br, I, CH3) AND CF3GeHnX3-n (X = H, D, CF2H, CH3)

Eujen, R.,Mellies, R.,Petrauskas, E.

, p. 29 - 40 (2007/10/02)

The hydrogenation of (CF3)nGeX4-n (X = halogen, n = 1-3) with NaBH4 in an acidic medium has been investigated.Deuteration with NaBD4 and D3PO4 gave the partially deuterated species CF3GeHnD3-n and (CF3)2GeHnD2-n in reasonable isotopic purity.The )CF3)2GeHBr was isolated and converted into the halides (CF3)2GeHX (X = F, Cl, I) by treatment with AgX or HX.Insertion of CF2 into a Ge-H bond has been observed, and (CF3)(CF2H)GeH2 has been characterized.Direct alkylation of Ge-H bonds brought about by reaction with a mixture of RI and R'2Zn (R, R' = CH3, C2H5), and the methyl(trifluoromethyl)germanes CF3GeH2(CH3), CF3GeH(CH3) and (CF3)2GeH(CH3) were isolated.For R = CD3, R' = CH3 the product distribution can be accounted in terms of two competing mechanisms.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 21907-59-5