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16584-01-3

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16584-01-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16584-01-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,5,8 and 4 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16584-01:
(7*1)+(6*6)+(5*5)+(4*8)+(3*4)+(2*0)+(1*1)=113
113 % 10 = 3
So 16584-01-3 is a valid CAS Registry Number.

16584-01-3Relevant articles and documents

N-arylations of nitrogen-containing heterocycles with aryl and heteroaryl halides using a copper(I) oxide nanoparticle/1,10-phenanthroline catalytic system

Tang, Bo-Xiao,Guo, Sheng-Mei,Zhang, Man-Bo,Li, Jin-Heng

, p. 1707 - 1716 (2008)

A general procedure for solvent-free N-arylations of nitrogen-containing heterocycles, i.e. imidazoles, triazoles, and indoles, with aryl and heteroaryl halides catalyzed by copper(I) oxide (Cu2O) nanoparticles is demonstrated. Four types of Cu2O were evaluated: the bulky compound and its cubic, octahedral, and spherical nanoparticulate forms. The results show that Cu2O nanoparticles, in particular the cubic form, are highly efficient for the N-arylation reaction. In the presence of cubic Cu2O nanoparticles, 1,10-phenanthroline, and tetrabutylammonium fluoride, a variety of nitrogen-containing heterocycles smoothly underwent N-arylation with aryl and heteroaryl halides at 110-145 °C to give the corresponding products in moderate to excellent yields. It is noteworthy that the reaction is conducted under solvent-free conditions. The reaction mechanism is also discussed.

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