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134920-52-8

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134920-52-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134920-52-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,2 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 134920-52:
(8*1)+(7*3)+(6*4)+(5*9)+(4*2)+(3*0)+(2*5)+(1*2)=118
118 % 10 = 8
So 134920-52-8 is a valid CAS Registry Number.

134920-52-8Downstream Products

134920-52-8Relevant articles and documents

KETENE IMINE YLIDES IN THE REACTIONS OF FLUOROCHLORO- AND DIBROMOCARBENES WITH KETENE IMINES. SYNTHESIS OF CARBAMOYL FLUORIDES

Khlebnikov, A. F.,Novikov, M. S.,Kostikov, R. R.

, p. 1638 - 1641 (2007/10/02)

The reaction of ketene imines with fluorochloro- and dibromocarbenes takes place through the intermediate formation of keteneiminium dihalogenomethanides.In the case of fluorochlorocarbene carbamoyl fluorides or fluorodichloroacetamides are formed, depending on the method of generation.The reaction of triphenylketeneiminium fluoromethanide with dimethyl acetylenedicarboxylate leads to the product from 1,3-dipolar cycloaddition.In the reaction of dibromocarbene with triarylketene imines the corresponding N-(2,2-diphenylvinyl)-N-(tribromovinyl)anilines are formed.

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