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5653-11-2

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5653-11-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5653-11-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,5 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5653-11:
(6*5)+(5*6)+(4*5)+(3*3)+(2*1)+(1*1)=92
92 % 10 = 2
So 5653-11-2 is a valid CAS Registry Number.

5653-11-2Relevant articles and documents

Copper-catalyzed aerobic cyclizations of tetrahydroisoquinolines with bromoketones and alkenes for the synthesis of 5,6-dihydropyrrolo[2,1-a] isoquinolines

Wang, Wenhui,Sun, Jinwei,Hu, Huayou,Liu, Yun

, p. 1651 - 1658 (2018/03/21)

A new copper-catalyzed oxidative cyclization protocol was developed for the synthesis of 5,6-dihydropyrrolo[2,1-a]isoquinolines via a three-component reaction of tetrahydroisoquinolines with bromoketones and electron-deficient alkenes with air as a termin

The Reactions of α-Arylsulfonoxy Ketones with Nucleophiles

Hoffman, Robert V.,Jankowski, Bryan C.,Carr, C. Sean,Duesler, Eileen N.

, p. 130 - 135 (2007/10/02)

α-(p-Nitrophenyl)sulfonoxy ketones can be converted to α-hydroxy ketals and α-hydroxy ketones by reaction with potassium carbonate and basic or acidic workup, respectively.They also react with amines to give α-amino ketones in high yields.Nonnucleophilic amines give an intramolecular aromatic substitution in the derived enolate.Factors which dictate the reaction patterns in these compounds are discussed.

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