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1352708-26-9

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1352708-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1352708-26-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,2,7,0 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1352708-26:
(9*1)+(8*3)+(7*5)+(6*2)+(5*7)+(4*0)+(3*8)+(2*2)+(1*6)=149
149 % 10 = 9
So 1352708-26-9 is a valid CAS Registry Number.

1352708-26-9Downstream Products

1352708-26-9Relevant articles and documents

Syntheses of strychnine, norfluorocurarine, dehydrodesacetylretuline, and valparicine enabled by intramolecular cycloadditions of Zincke aldehydes

Martin, David B. C.,Nguyen, Lucas Q.,Vanderwal, Christopher D.

, p. 17 - 46 (2012/02/04)

A full account of the development of the base-mediated intramolecular Diels-Alder cycloadditions of tryptamine-derived Zincke aldehydes is described. This important complexity-generating transformation provides the tetracyclic core of many indole monoterpene alkaloids in only three steps from commercially available starting materials and played a key role in short syntheses of norfluorocurarine (five steps), dehydrodesacetylretuline (six steps), valparicine (seven steps), and strychnine (six steps). Reasonable mechanistic possibilities for this reaction, a surprisingly facile dimerization of the products, and an unexpected cycloreversion to regenerate Zincke aldehydes under specific conditions are also discussed.

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