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912918-23-1

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912918-23-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 912918-23-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,2,9,1 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 912918-23:
(8*9)+(7*1)+(6*2)+(5*9)+(4*1)+(3*8)+(2*2)+(1*3)=171
171 % 10 = 1
So 912918-23-1 is a valid CAS Registry Number.

912918-23-1Downstream Products

912918-23-1Relevant articles and documents

Novel reduction of perfluoroalkyl ketones with lithium alkoxides

Sokeirik, Yasser S.,Sato, Kazuyuki,Omote, Masaaki,Ando, Akira,Kumadaki, Itsumaro

, p. 150 - 152 (2008/09/17)

The reaction of tert-butyl N-(2-bromophenyl)carbamate (1) with ethyl perfluorooctanoate in the presence of tert-butyllithium did not give the desired N-(2-perfluorooctanoylphenyl)carbamate (3) but gave 1-hydroxy-1H-perfluorooctyl compound (4), which was supposed to be formed by the reduction of 3. A similar reaction of 2,2,2-trifluoroacetophenone with tert-butyllithium did not gave any reduction product. Detailed investigation showed that lithium ethoxide worked as the reducing agent of this abnormal reduction. By the reaction of lithium isopropoxide, an aldol product from 2,2,2-trifluoroacetophenone with acetone was isolated, while perfluoroheptyl or perfluoropropyl phenyl ketones were reduced by this alkoxide in a high yield without formation of the aldol adduct.

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