6-Chloropyridazin-3-ol → 6-Chloro-2-methyl-2,3-dihydropyridazin-3-one

Participants

Reaction Steps

The title compound was prepared from 2,2-dimethyl-3-((R)-2-oxo-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-6-yl)propanenitrile and 6-chloro-2-methylpyridazin-3(2H)-one following a procedure analogous to that described in Example 1 Step 3. 6-chloro-2-methylpyridazin-3(2H)-one was prepared from 6-chloropyridazin-3-(2H)-one following a procedure analogous to that described in Example 1 Step 2. LC-MS Method 2 tR=1.138 min, m/z=471.3; 1H NMR (CDCl3) 1.28 (s, 3H), 1.41 (s, 3H), 1.49 (m, 3H), 2.1 (s, 2H), 2.2 (m, 1H), 2.42 (m, 2H), 2.85 (m, 1H), 3.78 (s, 3H), 6.92 (m, 3H), 7.31 (m, 5H), 7.43 (d, 2H), 7.50 (d, 1H), 7.35 (m, 8H)

Provenance & Evidence