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2,3,4,4-Tetrachlor-N-(4-methylphenyl)-3-butenamid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

87664-69-5

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87664-69-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87664-69-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,6 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87664-69:
(7*8)+(6*7)+(5*6)+(4*6)+(3*4)+(2*6)+(1*9)=185
185 % 10 = 5
So 87664-69-5 is a valid CAS Registry Number.

87664-69-5Relevant academic research and scientific papers

Reactions of 2,3,4,4-Tetrachloro-3-butenamides with Alcoholates and Amines

Roedig, Alfred,Ritschel, Werner

, p. 1496 - 1503 (2007/10/02)

From the amides 2c - e, available from hexachlorobutadiene (1a) via the intermediates 1b, 2a, and 2b, the thermally unstable allenes 3 are generated by bases.On treating 2c at room temperature with one mole of ethylate a dimer of 3c, probably 4, and from 2d with four moles of methylate the addition product 6 is obtained.Reactions of 2c - e with primary amines lead to the enamines 7 and 8, respectively.Secondary amines however, yield the nonconjugated compounds 9 which rearrange with an excess of amines into the conjugated isomers 10.Spectroscopic evidence for 1:1 equilibriums of the stereoisomers 78 and 1012 in CDCl3 solution is given.

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