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1718-54-3

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1718-54-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1718-54-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,1 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1718-54:
(6*1)+(5*7)+(4*1)+(3*8)+(2*5)+(1*4)=83
83 % 10 = 3
So 1718-54-3 is a valid CAS Registry Number.

1718-54-3Relevant articles and documents

Iodine ate complexes and N-lithiobenzocyclobutenamine intermediates in the reactions of α-lithionitriles with benzyne

Tripathy,Hussain,Durst

, p. 8401 - 8405 (2007/10/03)

α-Lithionitriles add to benzynes to give N-lithiobenzocyclobutenamines in a two-step process. The intermediate aryllithiums can be trapped prior to cyclization with iodobenzene or 2,6-dimethoxyiodobenzene to form iodine-ate complex intermediates which fragment preferentially to 2-(α-cyanobenzyl)-iodobenzenes. The N-lithiobenzocyclobutenamines undergo ring opening to yield either 2-substituted benzonitriles or α-substituted benzylcyanides depending on the substitution pattern on the aryl and cyclobutene rings. (C) 2000 Published by Elsevier Science Ltd.

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