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22863-58-7

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22863-58-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22863-58-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,8,6 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22863-58:
(7*2)+(6*2)+(5*8)+(4*6)+(3*3)+(2*5)+(1*8)=117
117 % 10 = 7
So 22863-58-7 is a valid CAS Registry Number.

22863-58-7Relevant articles and documents

SYNTHESES AND REACTIONS OF PYRIDAZINE DERIVATIVES XX STUDIES ON THE RADICAL METHYLATION OF THE 1,2-DIAZINE SYSTEM

Heinisch, Gottfried,Loutsch, Gerhard

, p. 1395 - 1402 (2007/10/02)

Protonated pyridazines (1,2,3) on reaction with methyl radical (generated by oxidative decarboxylation of acetic acid or by redox reaction of t-BuOOH/FeSO4*7H2O) are shown mainly to be attacked at positions β to the nitrogen atoms.However, formation of compounds 2, 4, 5, 6, 8, 9 and 10 indicates lower degree of regioselectivity compared with homolytic benzylation or acylation of the 1,2-diazine system.Synthesis of ethyl 5-styryl-4-pyridazinecarboxylates(13,14) was achieved by homolytic methylation of ethyl 4-pyridazinecarboxylate(11) followed by condensation with aromatic carbaldehydes.

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