1979
DOI: 10.1002/ardp.19793121209
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1,3‐Dihydroxyharnstoffe, 2. Mitt

Abstract: Die bei der Phosgenierung von Hydroxylaminhydrochlorid neben 1,3-Dihydroxyharnstoff (1) anfallende Substanz wird als 2 identifiziert. Ein Mechanismus fur die Umwandlung der 1,3-Dihydroxyharnstoffe 7 zu 8 und fur die Bildung von 13 aus Benzofurazan-1-oxid (11) und Formaldehyd wird diskutiert. 17 wird uber die isolierten radikalischen Intermediate 19 und 20 synthetisiert. Die durch Oxalylierung von 15 erhaltene Verbindung 21 wird mit Isocyanaten und Carbonsaurechloriden umgesetzt. 1,3-Dhydroxyureas, I1Products 1… Show more

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Cited by 5 publications
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“…The precipitate was filtered and washed with Me 2 CO (20 mL) to give 2a-c,e. Compound 2d 29 failed to solidify and was used in the further reaction without purification.…”
Section: Methodsmentioning
confidence: 99%
“…The precipitate was filtered and washed with Me 2 CO (20 mL) to give 2a-c,e. Compound 2d 29 failed to solidify and was used in the further reaction without purification.…”
Section: Methodsmentioning
confidence: 99%