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Utilization of ultrasonic irradiation as green and effective one-pot protocol to prepare a novel series of bis-2-amino-1,3,4-oxa(thia) diazoles and bis-tetrazoles
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi. Nuclear Material Authority, Egypt.
Rekke forfattare: 22017 (engelsk)Inngår i: ARKIVOC, ISSN 1551-7004, E-ISSN 1551-7012, s. 327-340Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In an effective and straightforward conversion, bis-semicarbazones and bis-thiosemicarbazones are transformed into a diversity of novel substituted bis-2-amino-1,3,4-oxadiazoles and bis-2-amino-1,3,4-thiadiazoles, respectively under ultrasonic irradiation. Bis-tetrazoles are obtained from the dialdehydes by sequential reaction with hydroxylamine hydrochloride, phosphorus pentoxide and sodium azide without isolation of the intermediates oximes and nitriles. All the reactions proceed cleanly and smoothly under mild conditions, with short reaction times and broad functional groups possibility. No side reactions were observed. [GRAPHICS]

sted, utgiver, år, opplag, sider
2017. s. 327-340
Emneord [en]
Ultrasound, one-pot reaction, bis-heterocycles, dialdehydes
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-152683DOI: 10.24820/ark.5550190.p010.197ISI: 000418768100028OAI: oai:DiVA.org:su-152683DiVA, id: diva2:1185205
Tilgjengelig fra: 2018-02-23 Laget: 2018-02-23 Sist oppdatert: 2018-02-23bibliografisk kontrollert

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