Diphosgene → HCID 22404796, compound

Participants

Reaction Steps

By the method of Example 1, Step F, 1.3 grams (0.005 mole) of 8-amino-5-chloro-2,2-dimethyl-7-fluoro-2H-1-benzopyran and 1.1 grams (0.005 mole) of trichloromethyl chloroformate were reacted in 50 mL of toluene, yielding about 1.4 grams of 5-chloro-2,2-dimethyl-7-fluoro-2H-1-benzopyran-8-yl isocyanate. The product was taken to the next step without further characterization.

Provenance & Evidence