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79963-48-7

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79963-48-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79963-48-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,6 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 79963-48:
(7*7)+(6*9)+(5*9)+(4*6)+(3*3)+(2*4)+(1*8)=197
197 % 10 = 7
So 79963-48-7 is a valid CAS Registry Number.

79963-48-7Downstream Products

79963-48-7Relevant articles and documents

The Acid-catalyzed Decomposition of α-Diazo β-Hydroxy Ketones

Miyauchi, Kazuo,Hori, Kimiaki,Hirai, Tsuguji,Takebayashi, Matsuji,Ibata, Toshikazu

, p. 2142 - 2146 (2007/10/02)

The proton acid-catalyzed decomposition of 3-aryl-2-diazo-3-hydroxy-1-phenylpropanone (1) gave aryl and hydrogen migration products.The former was the enol-form (2) of 2-aryl-3-phenyl-1,3-propanedione and the latter was the enol- (3) and keto-form (4) of 1-aryl-3-phenyl-1,3-propanedione.The product ratios, 2/(3+4), were affected by the catalysts and solvents used.More polar solvents favored the formation of aryl migration products (2).On the other hand, the BF3-catalyzed decomposition of 1 gave acetylenic ketones as main products along with 2, 3, 4.The TsOH-catalyzed decomposition of 2-diazo-3-hydroxy-3-phenyl-1-indanone, (cyclic α-diazo β-hydroxy ketone), gave 2-phenyl-1,3-indandione quantitatively through phenyl migration.

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