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372107-04-5

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372107-04-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 372107-04-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,2,1,0 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 372107-04:
(8*3)+(7*7)+(6*2)+(5*1)+(4*0)+(3*7)+(2*0)+(1*4)=115
115 % 10 = 5
So 372107-04-5 is a valid CAS Registry Number.

372107-04-5Downstream Products

372107-04-5Relevant articles and documents

4-Functionally substituted 3-heterylpyrazoles: VIII. 3-Aryl(heteryl)-4-hydroxyl(chloro)methylpyrazoles

Bratenko,Chornous,Vovk

, p. 411 - 414 (2002)

3-Aryl(heteryl)pyrazole-4-carbaldehydes were reduced with sodium tetrahydridoborate under mild conditions to give 3-aryl(heteryl)-4-hydroxymethylpyrazoles which were converted into the corresponding 4-chloromethyl derivatives by treatment with thionyl chloride. The subsequent reaction with triphenylphosphine led to formation of triphenyl(4-pyrazolylmethyl)phosphonium chlorides, and Wittig reaction of the latter with aromatic or heteroaromatic aldehydes yielded 4-[2-aryl(heteryl)ethenyl]pyrazoles.

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