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5253-86-1

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5253-86-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5253-86-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,5 and 3 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 5253-86:
(6*5)+(5*2)+(4*5)+(3*3)+(2*8)+(1*6)=91
91 % 10 = 1
So 5253-86-1 is a valid CAS Registry Number.

5253-86-1Downstream Products

5253-86-1Relevant articles and documents

Late Stage Functionalization of Secondary Amines via a Cobalt-Catalyzed Electrophilic Amination of Organozinc Reagents

Gra?l, Simon,Chen, Yi-Hung,Hamze, Clémence,Tüllmann, Carl Phillip,Knochel, Paul

, p. 494 - 497 (2019/01/14)

A general preparation of polyfunctional hydroxylamine benzoates from the corresponding secondary amines is reported. This convenient synthesis allows the setup of a late-stage functionalization of various secondary amines, including pharmaceuticals and peptidic derivatives. Thus, a cross-coupling of hydroxylamine benzoates with various alkyl-, aryl-, and heteroaryl-zinc chlorides in the presence of 5 mol % CoCl2 (25 °C, 2 h) provides a range of polyfunctional tertiary amines. This method was used to prepare penfluridol and gepirone.

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