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38446-59-2

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38446-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 38446-59-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,4,4 and 6 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 38446-59:
(7*3)+(6*8)+(5*4)+(4*4)+(3*6)+(2*5)+(1*9)=142
142 % 10 = 2
So 38446-59-2 is a valid CAS Registry Number.

38446-59-2Relevant articles and documents

Light-Induced Tetrazole-Quinone 1,3-Dipolar Cycloadditions

Ortiz-Rojano, Laura,Rojas-Martín, Jaime,Rodríguez-Diaz, Ciro,Carre?o, M. Carmen,Ribagorda, Maria

, p. 15050 - 15054 (2019/11/13)

Quinones were firstly used as dipolarophiles in a photoclick 1,3-cycloaddition with 2,5-diaryltetrazoles, as photoactivatable predipoles, providing a novel and efficient access to three types of pyrazole-fused quinones (indazoledione derivatives). Distinc

Efficient synthesis of 2,5-disubstituted tetrazoles via the Cu 2O-catalyzed aerobic oxidative direct cross-coupling of N-H free tetrazoles with boronic acids

Li, Yu,Gao, Lian-Xun,Han, Fu-She

supporting information; experimental part, p. 2719 - 2721 (2012/03/27)

We present a new protocol that allows for the synthesis of 2,5-disubstituted tetrazoles via the direct coupling of N-H free tetrazoles and low toxic boronic acids in the presence of only a catalytic amount of Cu 2O (5 mol%) as catalyst and 1 atm of environmentally benign O 2 as oxidant, without the need for other additives. This method represents a simple, green, and atom-efficient synthesis of 2,5-disubstituted tetrazoles. The Royal Society of Chemistry 2012.

Palladium- and copper-catalyzed selective arylation of 5-aryltetrazoles by diaryliodonium salts

Beletskaya, Irina P.,Davydov, Dmitri V.,Gorovoy, Matvey S.

, p. 6221 - 6223 (2007/10/03)

Palladium(0)-catalyzed arylation of 5-aryltetrazoles in t-BuOH at 80°C with diaryliodonium salts proceeds in the presence of copper(II) phenylcyclopropyl carboxylate regioselectively at the N2 position.

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