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936500-48-0

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936500-48-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 936500-48-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,6,5,0 and 0 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 936500-48:
(8*9)+(7*3)+(6*6)+(5*5)+(4*0)+(3*0)+(2*4)+(1*8)=170
170 % 10 = 0
So 936500-48-0 is a valid CAS Registry Number.

936500-48-0Relevant articles and documents

Ring lithiation of 1,8-bis(dimethylamino)naphthalene: Another side of the 'proton sponge coin'

Antonov, Alexander S.,Pozharskii, Alexander F.,Ozeryanskii, Valery A.,Filarowski, Aleksander,Suponitsky, Kyrill Yu.,Tolstoy, Peter M.,Vovk, Mikhail A.

, p. 17756 - 17766 (2015)

It has been found that 1,8-bis(dimethylamino)naphthalene (DMAN), unlike N,N-dimethylaniline, undergoes ring metallation in the n-BuLi-TMEDA-Et2O system with a low selectivity and in poor total yields. The situation is significantly improved in the t-BuLi-TMEDA-n-hexane system when 3- and 4-lithium derivatives become the only reaction products obtained in good yields. The formation of 3-Li-DMAN is especially desired since no method of direct meta-functionalization of DMAN is known to date. The relative stability and structure of DMAN lithium derivatives have been examined with the help of X-ray and multinuclear NMR measurements as well as DFT calculations.

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