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1174372-99-6

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1174372-99-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1174372-99-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,3,7 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1174372-99:
(9*1)+(8*1)+(7*7)+(6*4)+(5*3)+(4*7)+(3*2)+(2*9)+(1*9)=166
166 % 10 = 6
So 1174372-99-6 is a valid CAS Registry Number.

1174372-99-6Downstream Products

1174372-99-6Relevant articles and documents

Role of 2-naphthyl ether intermediate in formation of isolable atropisomers derived from the coupling reaction of (2-hydroxy-3,3-dimethylindolin-l-yl)-(substituted phenyl)methanones with 2-naphthol

Eto, Masashi,Ito, Fumikazu,Sato, Hidetoshi,Shinohara, Itaru,Yamaguchi, Koki,Yoshitake, Yasuyuki,Harano, Kazunobu

experimental part, p. 1485 - 1496 (2009/12/24)

The formation pathway of the atropisomers derived from the reaction of (2-hydroxy-3,3-dimethylindolin-l-yl)(4-substituted phenyl)methanones with 2-naphthol in the presence of BF3·Et2O was discussed on the basis of the isolation of the 2-naphthyl ether intermediate whose structure was determined by single crystal X-ray analysis. The results indicate that the coupling reaction proceeds through stepwise mechanism, i.e., the ether intermediate formation followed by Fries-type rearrangement.

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