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111034-84-5

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111034-84-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111034-84-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,0,3 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 111034-84:
(8*1)+(7*1)+(6*1)+(5*0)+(4*3)+(3*4)+(2*8)+(1*4)=65
65 % 10 = 5
So 111034-84-5 is a valid CAS Registry Number.

111034-84-5Downstream Products

111034-84-5Relevant articles and documents

Ring-Expansion of Bridgehead Aldehydes with 1-Adamantanecarbonyl Cation or Benzoyl Trifluoromethanesulfonate: A New Route to Bicyclic and Tricyclic 1,2-Diols

Takeuchi, Ken'ichi,Kitagawa, Itsuko,Akiyama, Fumio,Shibata, Tadashi,Kato, Midori,Okamoto, Kunio

, p. 612 - 615 (2007/10/02)

Acylation of bridgehead aldehydes with 1-adamantanecarbonyl cation generated from 1-adamantyl cation and carbon monoxide, or with benzoyl trifluoromethanesulfonate, in the presence of trifluoromethanesulfonic acid causes ring-expansion of the aldehydes by one carbon atom.Work-up of the reaction mixture with water affords a bridgehead alcohol containing the acyloxy group on the vicinal carbon, which on saponification gives a vicinal glycol in good overall yields.For example, bicycloheptane-1-carbaldehyde gives bicyclooctane-1,2-diol which is not easily accessible by the other methods.

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