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258280-95-4

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258280-95-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 258280-95-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,2,8 and 0 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 258280-95:
(8*2)+(7*5)+(6*8)+(5*2)+(4*8)+(3*0)+(2*9)+(1*5)=164
164 % 10 = 4
So 258280-95-4 is a valid CAS Registry Number.

258280-95-4Upstream product

258280-95-4Downstream Products

258280-95-4Relevant articles and documents

Deprotonation from an N-methyl group in 2-[1-(dimethylamino)-1-methylethyl]phenylborane derivatives

Asakura, Mitsuhiro,Oki, Michinori,Toyota, Shinji

, p. 206 - 208 (2008/10/08)

Reaction of 2-[1-(dimethylamino)-1-methylethyl]phenyllithium (Ar*Li) with a trialkyl borate, B(OR)3, in the 3:1 ratio gave 1-Ar*-3,4,4-trimethyl-1,2,3,4-tetrahydro-3,1-benzazaborin as a major product together with the corresponding protonated compound and the boronic acid. The structure of the hetelocyclic compound was determined by X-ray analysis and NMR spectroscopy. This compound is formed via the deprotonation from one of the N-Me groups in Ar*2B(OR) by the remaining Ar*Li followed by the facile intramolecular cyclization between the boron and carbon atoms.

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