Cas 209521-66-4,(Z)-2-Formyl-3-(3-methoxy-phenylamino)-acrylonitrile

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Check Digit Verification of cas no

The CAS Registry Mumber 209521-66-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,5,2 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 209521-66:
(8*2)+(7*0)+(6*9)+(5*5)+(4*2)+(3*1)+(2*6)+(1*6)=124
124 % 10 = 4
So 209521-66-4 is a valid CAS Registry Number.

209521-66-4Upstream product

209521-66-4Downstream Products

209521-80-2 (E)-2-Formyl-3-(3-methoxy-phenylamino)-acrylonitrile

209521-66-4Relevant articles and documents

An efficient synthesis of 3-cyanoquinoline derivatives

Charpentier, Patricia,Lobregat, Virginie,Levacher, Vincent,Dupas, Georges,Queguiner, Guy,Bourguignon, Jean

, p. 4013 - 4016 (1998)

A short and efficient method is reported for the preparation of 3- cyanoquinoline derivatives Reaction of 3,3-dimethoxy 2-formyl-propanenitrile sodium salt 1 with various anilines 2 afforded (E) enamines 3 which were subsequently isomerized into (Z) enamines 4 and cyclized in a one pot procedure to give 3-cyanoquinolines 5 in good yields.

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209521-66-4