Acetic Acid → HCID 70212465, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of diethylfluorenyl benzothiazole, (9.0 g.), acetic acid (75 ml), and conc. nitric acid (sp. gr. 1.42, 25 ml) was held at 105° C. for 2 hours, cooled and filtered. These solids were stirred in dilute sodium hydroxide solution and filtered to get 10 g. of crude solid. This was recrystallized from toluene-heptane to afford 7.58 g., 75% of the nitrobenzothiazole, m.p. 209-2140C. Mass Spec: (m/z) 400(M+). Two recrystallizations from toluene-heptane raised the m.p. to 231.6-233.5° C. Anal. Calcd. for C24H20N2O2S: C, 71.98; H, 5.03; N, 7.00; S, 7.99. Found: C, 71.70, H, 4.90; N, 6.62; S, 7.77.

Provenance & Evidence