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22147-13-3

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22147-13-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22147-13-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,4 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 22147-13:
(7*2)+(6*2)+(5*1)+(4*4)+(3*7)+(2*1)+(1*3)=73
73 % 10 = 3
So 22147-13-3 is a valid CAS Registry Number.

22147-13-3Upstream product

22147-13-3Relevant academic research and scientific papers

Catalytic C(sp3)?H Arylation of Free Primary Amines with an exo Directing Group Generated In Situ

Xu, Yan,Young, Michael C.,Wang, Chengpeng,Magness, David M.,Dong, Guangbin

, p. 9084 - 9087 (2016)

Herein, we report the palladium-catalyzed direct arylation of unactivated aliphatic C?H bonds in free primary amines. This method takes advantage of an exo-imine-type directing group (DG) that can be generated and removed in situ. A range of unprotected aliphatic amines are suitable substrates, undergoing site-selective arylation at the γ-position. Methyl as well as cyclic and acyclic methylene groups can be activated. Furthermore, when aniline-derived substrates were used, preliminary success with δ-C?H arylation was achieved. The feasibility of using the DG component in a catalytic fashion was also demonstrated.

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