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62980-80-7

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62980-80-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 62980-80-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,9,8 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 62980-80:
(7*6)+(6*2)+(5*9)+(4*8)+(3*0)+(2*8)+(1*0)=147
147 % 10 = 7
So 62980-80-7 is a valid CAS Registry Number.

62980-80-7Relevant articles and documents

THE ORIENTATION OF SUBSTITUTION IN METALLATION OF DIMETHYLAMINOMETHYL-, HYDROXYMETHYL- AND DIPHENYLPHOSPHIONO-CYMANTRENES

Loim, N. M.,Kondrat'Ev, P. V.,Solov'Eva, N. P.,Antonovich, V. A.,Petrovskii, P. V.,et al.

, p. 233 - 244 (2007/10/02)

Dimethylaminomethyl- and hydroxymethyl-cymantrenes, when treated with n-butyllithium, are selectively metallated in the 2(5) position of the Cp ringand are converted into 1,2-disubstituted derivatives of cymantrene by subsequent treatment with electrophilic reagents.Similar reactions in the case of diphenylphosphinocymantrene result in a selective preparation of 1,3-disubstituted derivatives.The metallation orientation is established by chemical methods and NMR-LIS (lanthanide-induced shift) techniques.A full assignment of signals in the PMR and 13C NMR spectra of the studied monosubstituted cymantrene derivatives has been effected.

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