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A new medium for the diazotization of 2-amino-6-nitrobenzothiazole and 2-aminobenzothiazole

โœ Scribed by Jolanta Sokolowska-Gajda; Harold S. Freeman


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
435 KB
Volume
20
Category
Article
ISSN
0143-7208

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A New Route to the Synthesis of 2-Amino-
โœ Jean-Claude Muller; Henri Ramuz; Hans-Peter Wagner ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› John Wiley and Sons ๐ŸŒ German โš– 248 KB

## Abstract A new approach to 2โ€aminoโ€6โ€(methoxycarbonyl)aminoโ€4โ€(1,2,3,6โ€tetrahydroโ€1โ€pyridyl)pyrimidine 1โ€oxide (**3**) is described. Methyl [1โ€ethoxyโ€2โ€(ethoxycarbonyl)โ€ethylidene]carbamate (**5**) reacted with guanidine to the pyrimidinecarbamate **6**, which was successively transformed into m