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54436-55-4

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54436-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54436-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,3 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 54436-55:
(7*5)+(6*4)+(5*4)+(4*3)+(3*6)+(2*5)+(1*5)=124
124 % 10 = 4
So 54436-55-4 is a valid CAS Registry Number.

54436-55-4Upstream product

54436-55-4Relevant articles and documents

One-pot synthesis of 3-azido- and 3-aminopiperidines by intramolecular cyclization of unsaturated amines

Ortiz, Gerardo X.,Kang Jr., Bora,Wang, Qiu

, p. 571 - 581 (2014/04/03)

A highly efficient one-pot synthesis of 3- azidopiperidines has been achieved by an intramolecular cyclization of unsaturated amines that allows for the nucleophilic installation of an azide moiety. This method unlocks the versatile employment of the azide functionality in the preparation and biological studies of piperidine-containing structures. This strategy has been expanded for the direct incorporation of a variety of nitrogen nucleophiles, and thus it provides a rapid and modular synthesis of 3-amino and 3- amidopiperidines of important pharmaceutical and biological relevance. Particularly noteworthy is that the regioselectivity of this transformation enables the formation of the anti- Markovnikov-type adduct, complementing Markovnikov-based olefin amino functionalization methods.

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