The synthesis of 2mercaptobenzimidazole (MBI) from the reaction of carbon disulfide and ophenylene diamine (C6H4(NH2)2), catalyzed by tetrabutylammonium bromide (TBAB or QBr) in the presence of potassium hydroxide, was carried out in a homogeneous solution using protic or aprotic solvent. Water ...
benzene-1,2-diamine;OPDA;Phenylenediamine;OPD;1,2-PHENYLENEDIAMINE;1,2-DIAMINOBENZENE;orthamine;1,2-BENZENEDIAMINE;ORTHO-TOLUENEDIAMINE;ORTHOPHENYLENEDIAMINE CBNumber: CB9854699 Molecular Formula: C6H8N2 Molecular Weight: 108.14 MDL Number: MFCD00007721 ...
o-phenylene-diaminerust inhibitionVaselinebenzotriazole saltsbenzimidazole-derivatesThe corrosion of metals, particularly rust on iron and its alloys, poses significant challenges across industries, with notable economic and environmental consequences. Traditional rust prevention methods, reliant on chemical ...
intercalation reactionso-Phenylene diamine molecules were intercalated into molybdenum oxide layers by an in situ co-precipitation method. The structure and composition of the intercalated material were studied by X-ray diffraction (XRD), infrared spectroscopy (IR) and elemental analysis. XRD data ...
4-phenylene, 4,41-diphenylene, 1,4-naphthylene, 2,6-naphthylene, 2,5 - furylene or 2,5 - thienylene radical, or a dibenzofurane, dibenzothiophene-dioxide or 9,10 - dihydrophenanthrylene - 2,7 radical bonded in the 3,7-position to the oxazole radical, m represents the numbers 0, ...
The reactions of o-phenylenediamine with 1,2,3-triketone 2-arylhydrazones containing alkyl substituents result in the formation of 1-(benzimidazol-2-yl)-1,2-dioxoalkane arylhydrazones, whereas phenylsubstituted analogues afford 2-phenylbenzimidazole. Nickel(II) chelates of N, N鈥 -phenylene-bis(2...
Anti-tubercular activity of oxidation products of substituted o-phenylene diamines. Introduction Riminophenazines such as clofazimine (Figure 1) are of great interest to many medicinal chemists due to their various biological activities in ... VC Barry,JG Belton - 《Nature》 被引量: 42发表: ...
Synthesis of 2㏄henylquinoxaline from α㏒ubstituted N2〥ichlorohenylethyl)arenesulfonamides and o㏄henylenediaminepyrazine derivativesring closure reactionsdoi:10.1002/chin.200640168G. N. RozentsveigI. B. RozentsveigA. N. MirskovaG. G. Levkovskaya...
ChemInform Abstract: Five㎝embered 2,3〥ioxo Heterocycles. Part 57. Recyclization of 3㏄ivaloylpyrrolo[1,2゛]quinoxaline2,4(5H)‐triones (V) by the Action of o㏄henylenediamine. Crystalline and Molecular Structure of 33,3〥imethylxo3﹐xo4ヾihyd ...
andpracticalmethodforthesynthesisofbenzodiazepinederivativesthrough areactionofsubstitutedrJ—pheny1enediamineswithalkylpropiolateshasbeendeveloped.Thereactionsgenerated the1,5一benzodiazepinesingoodtoexcellentyieldsinthepresenceofcatalyticamountofIn(OTf)3undersol— vent—freereactionconditions. Keywords benzodiazepines,...