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Bis-(m-trifluormethyl-phenyl)-difluorsilan is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21993-35-1

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21993-35-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21993-35-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,9 and 3 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21993-35:
(7*2)+(6*1)+(5*9)+(4*9)+(3*3)+(2*3)+(1*5)=121
121 % 10 = 1
So 21993-35-1 is a valid CAS Registry Number.

21993-35-1Upstream product

21993-35-1Relevant academic research and scientific papers

USE OF SbF5 INTERCALATED IN GRAPHITE AS FLUORINATING REAGENT IN ORGANO-SILICON AND -GERMANIUM CHEMISTRY

Corriu, R.J.P.,Fernandez, J.M.,Guerin, C.

, p. 347 - 352 (1980)

The use of SbF5 intercalated in graphite as fluorinating reagent of organo-silicon and -germanium derivatives is described.While Si-O and Si-Cl bonds are readily cleaved, Si-H and Si-S bonds are only reactive in bifunctional silanes.Ge-X bonds (X=Br, Cl, OR, H) are unreactive.Allyl-silicon and allyl-germanium bonds are broken under mild conditions and in high yields, leading to the corresponding fluorosilane or fluorogermane.With bifunctional silanes, it is always possible to obtain the difluorinated derivatives.

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