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74581-07-0

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74581-07-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74581-07-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,8 and 1 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74581-07:
(7*7)+(6*4)+(5*5)+(4*8)+(3*1)+(2*0)+(1*7)=140
140 % 10 = 0
So 74581-07-0 is a valid CAS Registry Number.

74581-07-0Relevant articles and documents

INTRA VS INTERMOLECULAR AMIDOALKILATION OF AROMATICS

Ishai, D. Ben,Sataty, I.,Peled, N.,Goldshare, R.

, p. 439 - 450 (2007/10/02)

Three tipes of intramolecular amidoalkylation reactions of aromatics, two endotrigonal and one exotrigonal (I, II, III), leading to indolone, N-acylisoquinolines, isoquinolone and benzazepinone derivatives were studied.In the presence of external aromatic nucleophiles competing intermolecular amidoalkylations were observed (1->2, 13->14).The mechanism and the synthetic limitations of the three types of cyclization is discussed.

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