Tert-Butyl nitrite → HCID 9823536, compound

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Reaction Steps

4-(3-bromo-4,5-dimethoxy-phenyl)-7-chloro-3-cyano-2-imino-2H-chromene: The title compound was prepared from 7-amino-4-(3-bromo-4,5-dimethoxy-phenyl)-3-cyano-2-imino-2H-chromene (82 mg, 0.205 mmol), t-butyl-nitrite (0.8 mL, 6 mmol) and CuCl2 (104 mg, 0.774 mmol) by a procedure similar to Example 62b and isolated as a yellow solid (16 mg). 1H NMR (CDCl3): 7.82 (s, 1H), 7.22–7.16 (m, 4H), 6.94 (d, J=1.8 Hz, 1H), 3.96 (s, 3H), 3.92 (s, 3H).

Provenance & Evidence