2,6-Dimethylphenol → HCID 21883696, compound

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Reaction Steps

The title compound was prepared from 2,6-dimethylphenol and ethyl 6-chloro-7-fluoro-2-(trifluoromethyl)-2H-1-benzopyran-3-carboxylate (Example 183, Step 2) via a procedure similar to that described in Example 183, Steps 3 and 4: mp 252.7-258.6° C. 1H NMR (acetone-d6/300 MHz) 7.88 (s, 1H), 7.71 (s, 1H), 7.22 (m, 3H), 6.04 (s, 1H), 5.77 (q, 1H, J=7.0 Hz), 2.13 (s, 6H). 19F NMR (acetone-d6/282 MHz) −79.6 (d, J=7.2 Hz). FABLRMS m/z 397 (M−H). ESHRMS m/z 397.0450 (M−H, Calc'd 397.0454). Anal. Calc'd for C19H14ClF3O4: C, 57.23; H, 3.54; Cl, 8.89. Found: C, 57.21; H, 3.56; Cl, 8.98.

Provenance & Evidence