5620-35-9

Basic information

• Product Name: Pyridine-2,5-dicarbonyl chloride
• Synonyms: Pyridine-2,5-dicarbonyl chloride;pyridine-2,5-dicarbonyl dichloride
• CAS NO: 5620-35-9
• Molecular Formula: C₇H₃Cl₂NO₂
• Molecular Weight: 204.01022
• Mol File: 5620-35-9.mol
• Article Data: 13

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Pyridine-2,5-dicarbonyl chloride(CAS DataBase Reference)
• NIST Chemistry Reference: Pyridine-2,5-dicarbonyl chloride(5620-35-9)
• EPA Substance Registry System: Pyridine-2,5-dicarbonyl chloride(5620-35-9)

Safety Data

• Hazardous Substances Data: 5620-35-9(Hazardous Substances Data)

Upstream product

• 100-26-5 Pyridine-2,5-dicarboxylic acid 

Downstream Products

• 102594-76-3 pyridine-2,5-dicarboxylic acid bis-phenacylamide 
• 4663-96-1 pyridine-2,5-dicarboxylic acid diamide 
• 5552-44-3 ethyl 2,5-pyridinedicarboxylate 
• 21514-99-8 2,5-bis[hydroxymethyl]-pyridine 
• 37877-95-5 [2](1,4)benzeno[2](2,5)pyridinophane 
• 42239-18-9 2,5-bis(bromomethyl)pyridine 
• 40875-87-4 2,5-bis-(5-phenyl-oxazol-2-yl)-pyridine 
• 24202-70-8 pyridine-2,5-dicarboxylic acid dibenzyl ester 
• 1172634-77-3 C₂₃H₂₁NO₂ 
• 1172634-76-2 C₂₃H₂₁NO₂ 
• 1078168-78-1 C₂₁H₁₅N₃O₆ 
• 6011-55-8 2,5-pyridinedicarboxylic dihydrazide 
• 313557-37-8 N,N′-diphenylpyridine-2,5-dicarboxamide 

Relevant articles and documents

Synthesis and characterization of new polyesters based on 2,5-bis[(4-chloro carboxyanilino) carbonyl] pyridine and aromatic diols

Six new polyesters 7a-f were synthesized through the solution polycondensation reaction of diacid chloride 5 with six aromatic diols 6a-f in N,N-dimethyl acetamide (DMAc) as solvent in the presence of pyridine as base. The polycondensation reaction produced a series of novel polyester containing pyridyl moiety in the main chain in high yields with inherent viscosities between 0.35 and 0.54 dL/g. The resulted polymers were fully characterized by means of FT-IR spectroscopy, elemental analyses, inherent viscosity and solubility tests. Thermal properties of these polymers were investigated by using thermal gravimetric analysis (TGA) and differentional thermal gravimetric (DTG). The glass-transition temperatures of these polyesters were recorded between 130 and 170 °C by differential scanning calorimetry (DSC) and the 10% weight loss temperatures were ranging from 390 to 450 °C under nitrogen.

A COMPOUND, A REACTION PRODUCT OF SAID COMPOUND AND PRODUCTION METHODS THEREOF

There is provided a compound represented by general formula (lb), wherein ring A is a carbocyclic or heterocyclic ring, a reaction product of the reaction between one or more said compounds and one or more amine containing compounds. Also provided is related production methods thereof.

Primary coloured electrochromism of aromatic oxygen and sulfur diesters

Eleven aromatic diesters and thioic S,S′-diesters were synthesized and investigated using electrochemical (cyclic voltammetry and controlled potential electrolysis) and UV-vis spectroscopic techniques over a range of temperatures. Nine of the compounds exhibited vibrant colour changes from a colourless state in their neutral forms to brightly coloured upon one-electron electrochemical reduction in acetonitrile. The compounds were found to display either red, green or blue colours in their one-electron reduced states. The electrochromic properties of 3 of the compounds that displayed the most vibrant colour changes were examined in solution using a gold micro-mesh electrode laminated inside a polymer film.