dinitrobenzene การใช้

• 1, 3-Dinitrobenzene is accessible by nitration of nitrobenzene.
• Reduction of 1, 3-dinitrobenzene with sodium sulfide in aqueous solution leads to 3-nitroaniline.
• Without these groups it is not possible to form the methylene compound which reacts with dinitrobenzene but triazolo compounds may react.
• The 2-, 4-, and 6-positions on the pyrimidine ring are electron deficient analogous to those in pyridine and nitro-and dinitrobenzene.
• Most mammalian isoenzymes have affinity for the substrate 1-chloro-2, 4-dinitrobenzene, and spectrophotometric assays utilising this substrate are commonly used to report GST activity.
• 2, 4-Dinitroaniline can be prepared by reaction of 1-chloro-2, 4-dinitrobenzene with ammonia or by acid hydrolysis of 2, 4-dinitroacetanilide.
• Two of the more common reagents are "'Sanger's reagent "'( 1-fluoro-2, 4-dinitrobenzene ) and dansyl derivatives such as dansyl chloride.
• In vivo experiment of DNBS ( 2, 4-dinitrobenzene sulfonic acid ) induced rat colitis, a frequently used animal model for inflammatory bowel disease, showed comparable efficacy and greater potency than sulfasalazine.
• It is a two-component reagent, with the first component composed of 1, 3-dinitrobenzene ( 1 % w / v ) in methanol and the second component composed of 15 % potassium hydroxide in water.
• Sanger used a chemical reagent 1-fluoro-2, 4-dinitrobenzene ( now, also known as Sanger's reagent, fluorodinitrobenzene, FDNB or DNFB ), sourced from poisonous gas research by Bernhard Charles Saunders at the Chemistry Department at Cambridge University.
• Also included are the aromatic nitro-, amino-, and pyridilium-deratives : nitrobenzene, dinitrobenzene, trinitrotoluene, paramethylaminophenol sulfate ( Metol ), dinitro-ortho-cresol, aniline, trinitrophenylmethylnitramine ( tetryl ), hexanitrodiphenylamine ( aurantia ), phenylenediamines, and paraquat.
• In 2006 a group at Purdue University led by Scott McLuckey used a quadrupole / time-of-flight ( QqTOF ) tandem mass spectrometer with pulsed nano-ESI / atmospheric pressure chemical ionization ( APCI ) dual ionization source using radical anions of 1, 3-dinitrobenzene as the electron donor.