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116195-81-4

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116195-81-4 Usage

General Description

2,5-Diiodopyridine is a chemical compound with the molecular formula C5H3I2N. It is a derivative of pyridine and is mainly used in organic synthesis and pharmaceutical research. 2,5-Diiodopyridine is known for its strong electron-withdrawing properties due to the presence of iodine, making it useful in the development of various pharmaceutical and agrochemical products. It is also used as a reagent in the formation of carbon-carbon and carbon-nitrogen bonds. Additionally, 2,5-Diiodopyridine is commonly employed in the synthesis of various heterocyclic compounds, which are important building blocks in organic chemistry and drug discovery. Overall, 2,5-Diiodopyridine plays a crucial role in synthetic chemistry and drug development due to its unique properties and versatile reactivity.

Check Digit Verification of cas no

The CAS Registry Mumber 116195-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,1,9 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 116195-81:
(8*1)+(7*1)+(6*6)+(5*1)+(4*9)+(3*5)+(2*8)+(1*1)=124
124 % 10 = 4
So 116195-81-4 is a valid CAS Registry Number.
InChI:InChI=1/C5H3I2N/c6-4-1-2-5(7)8-3-4/h1-3H

116195-81-4 Well-known Company Product Price

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  • Alfa Aesar

  • (L20118)  2,5-Diiodopyridine, 98%   

  • 116195-81-4

  • 5g

  • 752.0CNY

  • Detail
  • Alfa Aesar

  • (L20118)  2,5-Diiodopyridine, 98%   

  • 116195-81-4

  • 25g

  • 3060.0CNY

  • Detail
  • Aldrich

  • (652733)  2,5-Diiodopyridine  95%

  • 116195-81-4

  • 652733-5G

  • 788.58CNY

  • Detail
  • Aldrich

  • (652733)  2,5-Diiodopyridine  95%

  • 116195-81-4

  • 652733-25G

  • 2,769.39CNY

  • Detail

116195-81-4SDS

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 2,5-Diiodopyridine

1.2 Other means of identification

Product number -
Other names 2,5-Dijod-pyridin

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:116195-81-4 SDS

116195-81-4Relevant articles and documents

Preparation and Properties of Pyridine-Analogue of TCNQ Dianion Salt

Hama, Yoshiyuki,Nobuhara, Yukikazu,Aso, Yoshio,Otsubo, Tetsuo,Ogura, Fumio

, p. 1683 - 1687 (1988)

Bis(tetrapropyl- and tetrabutylammonium) 1,1'-(2,5-pyridinediyl)bis (4a and 4b) were prepared in order to investigate the properties of pyridine-analogue 3 of TCNQ as a new electron acceptor and its complexation with TTF.Although 3 was not isolated, the cyclic voltammetry of the salt 4 indicated that 3 was a stronger electron acceptor than TCNQ.The charge-transfer complex of TTF and 3 was prepared by mixing TTF with 3 which was generated in situ from electrolytic oxidation of 4 or from the oxidation of 2,5-bis(dicyanomethyl)pyridine, a precursor of 4, with hydrogen peroxide.It consisted of 1:1 composition of donor and acceptor and showed a high electrical conductivity of 19 Scm-1.The 2:1 complex was prepared by metathesis of (TTF)3(BF4)2 and 4, and also highly conductive.

Cheap and easy synthesis of highly functionalized (het)aryl iodides via the aromatic finkelstein reaction

Meyer-Eppler, Georg,Kuechler, Lea,Tenten, Christina,Benkhaeuser, Christian,Brueck, Stefanie,Luetzen, Arne

, p. 1085 - 1090 (2014/05/06)

Aryl iodides are superior coupling partners in cross-couplingA- reactions compared to the corresponding chlorides or bromides. Unfortunately, the iodides are much more expensive, if commercially available at all, than the other halides. Thus, it is often mandatory to transform the available bromides into the corresponding iodides. The copper-catalyzed aromatic Finkelstein reaction turned out to be the method of choice to prepare a number of highly functionalized iodo(het)aryls, including pyridines, 2,2′-bipyridines, and chiral compounds. Georg Thieme Verlag Stuttgart? New York.

Homoleptic zincate-promoted room-temperature halogen-metal exchange of bromopyridines

Chau, Nguyet Trang Thanh,Meyer, Maxime,Komagawa, Shinsuke,Chevallier, Floris,Fort, Yves,Uchiyama, Masanobu,Mongin, Florence,Gros, Philippe C.

experimental part, p. 12425 - 12433 (2011/01/05)

Homoleptic lithium tri- and tetraalkyl zincates were reacted with a set of bromopyridines. Efficient and chemoselective bromine-metal exchanges were realized at room temperature with a substoichiometric amount of nBu 4ZnLi2·TMEDA reagent (1/3 equiv; TMEDA=N,N,N′,N′-tetramethylethylenediamine). This reactivity contrasted with that of tBu4ZnLi2·TMEDA, which was inefficient below one equivalent. DFT calculations allowed us to rationalize the formation of N...Li stabilized polypyridyl zincates in the reaction. The one-pot difunctionalization of dibromopyridines was also realized using the reagent stoichiometrically. The direct creation of C-Zn bonds in bromopyridines enabled us to perform efficient Negishi-type cross-couplings. Mild zincation! nBu4ZnLi2·TMEDA (in substoichiometric amounts) promoted efficient and chemoselective room-temperature bromine-metal exchange of a range of bromopyridines (see scheme). DFT calculations strongly supported the formation of a stabilized tripyridylzincate, which could be reacted with electrophiles or be directly involved in palladium-catalyzed cross-coupling reactions.

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