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17.7.3.4.1.2.1 Method 1: Reaction of a Diacetamide with Phosphoryl Chloride

DOI: 10.1055/sos-SD-017-01619

Tominaga, Y.Science of Synthesis, (2004171056.

Treatment of the diacetamide 123 [prepared from acetylation of 4-(2-aminophenyl)thiazol-2-amine monohydrobromide][‌121‌] with excess phosphoryl chloride gave bright orange plates of benzodiazathiacyclazine 90 in 14% yield (Scheme 47). The UV, IR, and NMR spectra suggest that this compound is a highly aromatic system.[‌121‌]

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