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15783-56-9

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15783-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15783-56-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,7,8 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 15783-56:
(7*1)+(6*5)+(5*7)+(4*8)+(3*3)+(2*5)+(1*6)=129
129 % 10 = 9
So 15783-56-9 is a valid CAS Registry Number.

15783-56-9Relevant articles and documents

Probing the Reactivity of 2,4-Dichlorofuro[3,4-d ]pyrimidin-7-one: A Versatile and Underexploited Scaffold to Generate Substituted or Fused Pyrimidine Derivatives

Costantino, Gabriele,Martina, Maria Grazia,Radi, Marco,Vincetti, Paolo

, p. 2010 - 2014 (2019)

Herein, we describe the results of our investigation on the chemical reactivity and versatility of a poorly explored scaffold: 2,4-dichlorofuro[3,4-d ]pyrimidin-7-one (3). Highly functionalized pyrimidines can be obtained with a divergent approach by reacting the key intermediate 3 with different amine nucleophiles under carefully controlled reaction conditions. The set-up of a microwave-Assisted one-pot, two-or three-step protocol to rapidly generate 2,4,5,6-Tetrasubstituted or fused pyrimidines is also reported.

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