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682153-82-8

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682153-82-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 682153-82-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,2,1,5 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 682153-82:
(8*6)+(7*8)+(6*2)+(5*1)+(4*5)+(3*3)+(2*8)+(1*2)=168
168 % 10 = 8
So 682153-82-8 is a valid CAS Registry Number.

682153-82-8Upstream product

682153-82-8Relevant articles and documents

An Enantioselective Access to 1-Alkyl-1,2,3,4-tetrahydroisoquinolines. Application to a New Synthesis of (-)-Argemonine

Youte, Jean-Jacques,Barbier, Denis,Al-Mourabit, Ali,Gnecco, Dino,Marazano, Christian

, p. 2737 - 2740 (2007/10/03)

Potassium ferricyanide oxidation of salt 1 gave isoquinolinone 7 whose treatment with Grignard reagents resulted in a high-yield formation of substituted isoquinolinium salts 5. The selectivity of the reduction of these salts to give derivatives 6 has been studied. Particularly good selectivities (82-84%) were observed when R is a benzylic group. On the basis of these results, a practical and enantioselective synthesis of the natural alkaloid (-)-argemonine is presented.

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