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1235976-71-2

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1235976-71-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1235976-71-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,5,9,7 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1235976-71:
(9*1)+(8*2)+(7*3)+(6*5)+(5*9)+(4*7)+(3*6)+(2*7)+(1*1)=182
182 % 10 = 2
So 1235976-71-2 is a valid CAS Registry Number.

1235976-71-2Downstream Products

1235976-71-2Relevant articles and documents

Synthesis of β-aminovinylphosphonates by organocatalytic nucleophilic displacement of acetate with amines

Garzon, Cécile,Attolini, Mireille,Maffei, Michel

scheme or table, p. 3772 - 3774 (2010/08/20)

The synthesis of diethyl β-aminovinylphosphonates 2 from acetoxy phosphonate 1 is described. The reaction entails an organocatalyzed substitution of the acetoxy group by primary or secondary amines. The use of a catalytic amount of DABCO is necessary if the amine is not nucleophilic enough, otherwise a strong nucleophilic amine can react without organocatalyst. The reaction led to a series of functionalized title compounds in good to excellent yields.

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