1972
DOI: 10.1007/bf00476330
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Chlorination and oxidation of some sulfurcontaining tetrachloropyridine derivatives

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Cited by 2 publications
(7 citation statements)
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“…It is advantageous, however, for oxidation of tetrachloro-4-methoxypyridine to its N-oxide, in which case cleavage to the 4-hydroxy compound is avoided [172,353]. Whereas Alkyl-or aryl-thiopolychloropyridines are oxidized to the corresponding sulphoxide by concentrated nitric acid [293,[355][356][357][358][359][360] , or peroxyacetic acid [270,361] and to the corresponding sulphone by peroxyacetic acid [232a, 269, 270, 292-294, 296, 355-359, 361], concentrated nitric acid [293,[355][356][357][358], potassium dichromate and acid [355][356][357][358], alkaline potassium permanganate [355][356][357][358], or chlorine water [362].…”
Section: Reactions Of Pentachloropyridine and Its Derivatives With Oxmentioning
confidence: 99%
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“…It is advantageous, however, for oxidation of tetrachloro-4-methoxypyridine to its N-oxide, in which case cleavage to the 4-hydroxy compound is avoided [172,353]. Whereas Alkyl-or aryl-thiopolychloropyridines are oxidized to the corresponding sulphoxide by concentrated nitric acid [293,[355][356][357][358][359][360] , or peroxyacetic acid [270,361] and to the corresponding sulphone by peroxyacetic acid [232a, 269, 270, 292-294, 296, 355-359, 361], concentrated nitric acid [293,[355][356][357][358], potassium dichromate and acid [355][356][357][358], alkaline potassium permanganate [355][356][357][358], or chlorine water [362].…”
Section: Reactions Of Pentachloropyridine and Its Derivatives With Oxmentioning
confidence: 99%
“…The parent mercaptan may be prepared in quantitative yield by treatment of pentachloropyridine with potassium or sodium hydrogen sulphide [269,270,[289][290][291]. It is oxidized by bromine in acetic acid to the corresponding disulphide [359,364,370,371], but with concentrated nitric acid it gives mainly tetrachloro-4-nitropyridine together with some of the corresponding sulphonic acid [360]. With chlorine in anhydrous carbon tetrachloride it gives tetrachloropyridine-4-sulphenyl chloride [359,364,[370][371][372].…”
Section: Other Reactionsmentioning
confidence: 99%
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