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20802-18-0

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20802-18-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20802-18-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,0 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20802-18:
(7*2)+(6*0)+(5*8)+(4*0)+(3*2)+(2*1)+(1*8)=70
70 % 10 = 0
So 20802-18-0 is a valid CAS Registry Number.

20802-18-0Downstream Products

20802-18-0Relevant articles and documents

A Convenient Route to β-Aryl-substituted Cyclic Enamines as Key Synthetic Intermediates of Sceletium and Amaryllidaceae Alkaloids

Matsumura, Yoshihiro,Terauchi, Jun,Yamamoto, Takashi,Konno, Takashi,Shono, Tatsuya

, p. 8503 - 8512 (2007/10/02)

Aryl groups were introduced into the position β to the nitrogen atom of cyclic amines by carrying out the anodic α-methoxylation of cyclic amine derivatives, the elimination of methanol from the oxidized products, the halomethoxylation of the resulting α,β-unsaturated cyclic amine derivatives, the replacement of the α-methoxy group with an aryl group, and the silver ion-promoted migration of the α-aryl group to the β-position, consecutively.This method was applied to the synthesis of some alkaloids such as (+/-)-mesembrine.

SCELETIUM (AIZOACEAE) ALKALOIDS: TOTAL SYNTHESIS OF RACEMIC MESEMBRANONE, MESEMBRENONE, O-METHYLSCELETENONE AND O-METHYL DIHYDROSCELETENONE

Sanchez, I. H.,Larraza, M. I.,Flores, H. J.,Rojas, I.,Alcala, R.

, p. 35 - 41 (2007/10/02)

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