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62476-56-6

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62476-56-6 Usage

Chemical Properties

crystal

Purification Methods

Recrystallise it from water. [Beilstein 22 III/IV 4093.]

Check Digit Verification of cas no

The CAS Registry Mumber 62476-56-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,4,7 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 62476-56:
(7*6)+(6*2)+(5*4)+(4*7)+(3*6)+(2*5)+(1*6)=136
136 % 10 = 6
So 62476-56-6 is a valid CAS Registry Number.
InChI:InChI=1/C5H4Cl2N2/c6-4-2-1-3(8)5(7)9-4/h1-2H,8H2

62476-56-6 Well-known Company Product Price

  • Brand
  • (Code)Product description
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  • Packaging
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  • Detail
  • Alfa Aesar

  • (H31598)  3-Amino-2,6-dichloropyridine, 97%   

  • 62476-56-6

  • 1g

  • 364.0CNY

  • Detail
  • Alfa Aesar

  • (H31598)  3-Amino-2,6-dichloropyridine, 97%   

  • 62476-56-6

  • 5g

  • 910.0CNY

  • Detail
  • Alfa Aesar

  • (H31598)  3-Amino-2,6-dichloropyridine, 97%   

  • 62476-56-6

  • 25g

  • 2730.0CNY

  • Detail
  • Aldrich

  • (706361)  3-Amino-2,6-dichloropyridine  97%

  • 62476-56-6

  • 706361-1G

  • 346.32CNY

  • Detail

62476-56-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,6-Dichloropyridin-3-amine

1.2 Other means of identification

Product number -
Other names 3-Amino-2,6-dichloropyridine

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:62476-56-6 SDS

62476-56-6Relevant articles and documents

Efficient and recyclable bimetallic Co–Cu catalysts for selective hydrogenation of halogenated nitroarenes

Lu, Xionggang,Ren, Jiaan,Sheng, Yao,Wang, Xueguang,Wu, Baoqin,Zou, Xiujing

, (2021/12/20)

Silica supported N-doped carbon layers encapsulating Co–Cu nanoparticles (Co1Cux@CN/SiO2) were prepared by a one-step impregnation of Co(NO3)2·6H2O, Cu(NO3)2·3H2O, urea and glucose, following in situ carbothermal reduction. Effects of Cu contents on the catalytic performance of the Co1Cux@CN/SiO2 catalysts were investigated for selective hydrogenation of p-chloronitrobenzene to p-chloroaniline. The Co1Cu0.30@CN/SiO2 with Cu/Co molar ratio of 0.30:1 presented much higher activity and stability than the monometallic Co@CN/SiO2 catalyst. The addition of Cu into Co1Cux@CN/SiO2 catalysts had favorable effects on the formation of highly active Co–N sites and N-doped carbon layer. The role of the N-doped carbon layer was to protect the Co from oxidation by air, and the Co1Cu0.30@CN/SiO2 could be reused for at least 12 cycles without decrease in catalytic efficiency. Mechanistic and in situ infrared studies revealed that the interaction effect between the Co and Cu atoms made the surface of Co highly electron rich, which decreased adsorption of halogen groups and resulting in the enhanced selectivity during chemoselective hydrogenation of halogenated nitroarenes for a wide scope of substrates.

In Situ Synthesized Silica-Supported Co@N-Doped Carbon as Highly Efficient and Reusable Catalysts for Selective Reduction of Halogenated Nitroaromatics

Sheng, Yao,Wang, Xueguang,Yue, Shengnan,Cheng, Gonglin,Zou, Xiujing,Lu, Xionggang

, p. 4632 - 4641 (2020/07/30)

Silica-supported Co@N-doped carbon (Co@CN/SiO2) catalysts were first prepared by a one-step impregnation with a mixed solution of cobalt nitrate, glucose and urea, followed by in situ carbonization and reduction. The Co@CN/SiO2 catalysts were investigated for the selective reduction of nitro aromatics to the corresponding anilines using hydrazine hydrate. The Co@CN/SiO2-500 carbonized at 500 °C exhibited the highest catalytic activity and excellent stability without any decay of activity after 6 cycles for the reduction of nitrobenzene. Both metallic Co atoms and Co?N species formed in the Co@CN/SiO2 catalysts were active, but the Co?N species were dominant active sites. The high activities of the Co@CN/SiO2 catalysts were attributed to the synergistic effect between the Co and N atoms, promoting heterolytic cleavage of hydrazine to form H+/H? pairs. Representative examples demonstrated that the Co@CN/SiO2-500 could completely transform various halogen-substituted nitro aromatics to the corresponding halogenated anilines with high TOFs and selectivity of '99.5 percent.

Process study for synthesizing 2,3,6-trichloropyridine from nicotinamide

-

, (2018/09/20)

The invention provides a process study for synthesizing 2,3,6-trichloropyridine from nicotinamide. The process study comprises the following steps: with nicotinamide as a raw material, adding a sodiumhypochlorite solution in an alkaline environment to carry out a Hofmann downgrading reaction to obtain 3-aminopyridine; under catalysis of a Lewis acid catalyst, performing chlorination reaction under a concentrated hydrochloric acid/hydrogen peroxide condition to obtain 2,6-dichloro-3-aminopyridine; and reacting in the presence of sodium nitrite under low temperature and strong acid conditions to form a diazonium salt solution; and finally, performing a Sandmeyer reaction to obtain the target product, 2,3,6-trichloropyridine. The process material provided by the invention is simple, easily available and cheap, the reaction condition is simple and easy to operate, the post-treatment is simple, the yield is high, and thus the process has good industrial development prospects.

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