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1416802-91-9

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1416802-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1416802-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,6,8,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1416802-91:
(9*1)+(8*4)+(7*1)+(6*6)+(5*8)+(4*0)+(3*2)+(2*9)+(1*1)=149
149 % 10 = 9
So 1416802-91-9 is a valid CAS Registry Number.

1416802-91-9Downstream Products

1416802-91-9Relevant articles and documents

Copper(II) supported on magnetic chitosan: A green nanocatalyst for the synthesis of 2,4,6-triaryl pyridines by C-N bond cleavage of benzylamines

Shaabani, Ahmad,Borjian Boroujeni, Mahmoud,Laeini, Mohmmad Sadegh

, p. 27706 - 27713 (2016)

In this paper, Cu/magnetic chitosan has been synthesized and used as a new green nanocatalyst for highly efficient synthesis of 2,4,6-triaryl pyridines via C-N bond cleavage of benzylamines under aerobic oxidation at 90 °C. The chemical and structural properties of the synthesized catalyst were determined by scanning electron microscopy, energy-dispersive X-ray, X-ray powder diffraction, thermogravimetric analysis and flame atomic absorption spectroscopies. It is found that the catalyst can be easily separated from the reaction mixture by an external magnetic field and recycled several times without a significant loss in activity.

One-Pot Reactions for Modular Synthesis of Polysubstituted and Fused Pyridines

Song, Zhidong,Huang, Xin,Yi, Wenbin,Zhang, Wei

supporting information, p. 5640 - 5643 (2016/11/17)

A 2-fluoro-1,3-dicarbonyl-initiated one-pot Michael addition/[5 + 1] annulation/dehydrofluorinative aromatization reaction sequence is introduced for regioselective synthesis of di-, tri-, tetra-, and pentasubstituted pyridines as well as fused pyridines. This simple and modular synthesis is performed using readily available starting materials and under transition-metal catalyst-free conditions.

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