Cas 109307-07-5,6-p-tolyl-2,3-dihydrofuro<2,3-b>pyrimidine

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Check Digit Verification of cas no

The CAS Registry Mumber 109307-07-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,0 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 109307-07:
(8*1)+(7*0)+(6*9)+(5*3)+(4*0)+(3*7)+(2*0)+(1*7)=105
105 % 10 = 5
So 109307-07-5 is a valid CAS Registry Number.

109307-07-5Upstream product

109307-03-1 5-(3-butynyloxy)-6-phenyl-3-p-tolyl-1,2,4-triazine

109307-07-5Downstream Products

109307-07-5Relevant academic research and scientific papers

Intramolecular Diels-Alder Reactions of 1,2,4-Triazines. Synthesis of Condensed Pyrimidines

Taylor, Edward C.,Pont, Joseph L.

, p. 4287 - 4292 (1987)

1,2,4-Triazines with C5 tethered dienophilic side chains are sterically constrained to undergo intramolecular Diels-Alder reactions across the N2/C5 triazine positions; elimination of a nitrile from the intermediate adduct (N1 and C6 of the starting 1,2,4

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