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Synthese von Dithiocarbamidsäureestern des PyrazolsHerrn Prof. Dr. D. Martin zum 60. Geburtstag gewidmet. (1993)

Graubaum, H.

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 335 (1993), S. 88-94

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ISSN: 0941-1216

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Synthesis of PyrazolyldithiocarbonatesThe reaction of 3-amino-pyrazole 1 with carbondisulfide and alkylating agents in basic conditions to yield different dithiocarbonates 2-8 was studied. The dithiocarbonates 2a react with isocyanates to form 1-acyl-5-acylamino-pyrazoles 9-10. Acyl migrations were observed depending on the reaction temperature and the isocyanates.The results obtained enable us to correct some confusions in the literature about thioureas of pyrazoles.

Additional Material: 6 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19933350114

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