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92470-57-0

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92470-57-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92470-57-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,4,7 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 92470-57:
(7*9)+(6*2)+(5*4)+(4*7)+(3*0)+(2*5)+(1*7)=140
140 % 10 = 0
So 92470-57-0 is a valid CAS Registry Number.

92470-57-0Downstream Products

92470-57-0Relevant articles and documents

Synthesis and Diels-Alder Reactions of 1,3-Dimethyl-4-(phenylsulfonyl)-4H-furoindole. A new Annulation Strategy for the Construction of Ellipticine and Isoellipticine

Gribble, Gordon W.,Saulnier, Mark G.,Sibi, Mukund P.,Obaza-Nutaitis, Judy A.

, p. 4518 - 4523 (2007/10/02)

The novel fused heterocycle 1,3-dimethyl-4-(phenylsulfonyl)-4H-furoindole (4) is synthesized from 3-ethylindole (6) in six steps (46percent yield) or from indole-3-carboxaldehyde (12) in four steps (21percent yield).Furoindole 4 undergoes Diels-Alder reactions with dimethyl acetylenedicarboxylate, N-phenylmaleimide, benzyne, and 3,4-pyridyne (5) to give the expected adducts 17, 18a,b, 19, and 23a,b, respectively.Deoxygenation and desulfonylation of 19 and 23a,b, respectively, give benzocarbazole 22 and a readily separable mixture of the pyridocarbazole alkaloids ellipticine (1a) and isoellipticine (2a).

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