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191847-71-9

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191847-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191847-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,8,4 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 191847-71:
(8*1)+(7*9)+(6*1)+(5*8)+(4*4)+(3*7)+(2*7)+(1*1)=169
169 % 10 = 9
So 191847-71-9 is a valid CAS Registry Number.

191847-71-9Relevant articles and documents

A Combination of Visible-Light Organophotoredox Catalysis and Asymmetric Organocatalysis for the Enantioselective Mannich Reaction of Dihydroquinoxalinones with Ketones

Rostoll-Berenguer, Jaume,Blay, Gonzalo,Mu?oz, M. Carmen,Pedro, José R.,Vila, Carlos

supporting information, p. 6011 - 6015 (2019/08/26)

An enantioselective photooxidative Mannich reaction of dihydroquinoxalinones with ketones by the merger of organophotoredox and asymmetric organocatalysis is described. This protocol features very mild reaction conditions using simple and cheap catalysts (Eosin Y and (S)-Proline) for the synthesis of chiral quinoxaline derivatives with good to high yields (up to 94%) and excellent enantioselectivities (up to 99% ee).

Pyrrolylquinoxalinediones: A new class of AMPA receptor antagonists

Lubisch,Behl,Hofmann

, p. 2887 - 2892 (2007/10/03)

Pyrrolylquinoxalinediones were synthesized and their affinities for the AMPA receptor were determined. Most compounds showed moderate to good affinities. The acetic acid derivative 8b exhibited a K(i) value of 70 nM and was equipotent to NBQX 1. Structure activity relationships are discussed. Selected compounds were tested for their potency to inhibit AMPA induced lethal convulsions in mice. In this in vivo model the compounds showed improved potency compared with NBQX.

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