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1610621-74-3

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1610621-74-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1610621-74-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,0,6,2 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1610621-74:
(9*1)+(8*6)+(7*1)+(6*0)+(5*6)+(4*2)+(3*1)+(2*7)+(1*4)=123
123 % 10 = 3
So 1610621-74-3 is a valid CAS Registry Number.

1610621-74-3Downstream Products

1610621-74-3Relevant articles and documents

Polyfluorinated 2,4-diaryl-2,3-dihydro-1H-1,5-benzodiazepines: Synthesis and new rearrangement into polyfluorodihydrobenzimidazo[1,2-a]quinolines

Borodina, Elena A.,Orlova, Natalia A.,Kargapolova, Irina Yu.,Gatilov, Yury V.

, p. 66 - 70 (2014)

Interaction of polyfluorinated chalcones (pentafluorobenzalacetophenone, benzalpentafluoroacetophenone and decafluorochalcone) with 1,2-diaminobenzene in alcohols in the presence of triethylamine or quaternary ammonium salt (TEBAC) has been investigated. In the presence of TEBAC in 2-propanol polyfluorinated 2,4-diaryl-2,3-dihydro-1H-1,5-benzodiazepines are formed. Some of them undergo intramolecular fluorine substitution and unusual rearrangement into a previously unknown polyfluoro-containing tetracyclic compounds - (6aR)-1,2,3,4- tetrafluoro-6a-aryl-6a,7-dihydrobenzimidazo[1,2-a]quinolines, under the reaction conditions as well as in absence of TEBAC. The structures are established on NMR spectra and confirmed by X-ray.

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