1949
DOI: 10.1021/ja01179a068
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Phenothiazine Derivatives: Di-oxygenated Compounds

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Cited by 14 publications
(6 citation statements)
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“…(iii) More interesting results were obtained by the sulfur fusion of p., p»-dihydroxydiphenylamine process of Houston et al (34). The original process gave a dark-blue amorphous mass, which did not melt 6.…”
Section: Purification Of Phenothiazine and Production Of Its Oxidation Derivativesmentioning
confidence: 94%
“…(iii) More interesting results were obtained by the sulfur fusion of p., p»-dihydroxydiphenylamine process of Houston et al (34). The original process gave a dark-blue amorphous mass, which did not melt 6.…”
Section: Purification Of Phenothiazine and Production Of Its Oxidation Derivativesmentioning
confidence: 94%
“…Preparative.-Phenothiazone, thionol, and phenothiazine sulphoxide were prepared by the methods of Olivier and Combe (1950), Houston, Kester, and DeEds (1949), and Barnett and Smiles (1909) respectively.…”
Section: Methodsmentioning
confidence: 99%
“…50.0mCi/mol; radiochemical purity > 98%) which did not depress a mixed melting point with the authentic compound. Phenothiazone (phenothiaz-3-one) was synthesized by oxidation of phenothiazine with ferric chloride (Pummerer andGabner 1913, Grannick, Michaelis andSchubert 1940) and thionol (7-hydroxyphenothiaz-3-one) by oxidation with sulphuric acid (Grannick andMichaelis 1947, Houston, Kester andDeEds 1949). Both were purified by column chromatography on aluminium oxide columns, phenothiazone being eluted with chloroform and thionol with 1.8 M ammonium hydroxide.…”
Section: Chemicalsmentioning
confidence: 99%