Tetrahydrofuran → 3-cyclopropyl-1-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Reaction equation

[Br:1][c:2]1[c:3]([CH:8]2[CH2:9][CH2:10]2)[n:4][n:5]([CH3:7])[cH:6]1.[CH2:29]1[O:30][CH2:31][CH2:32][CH2:33]1.[CH3:11][CH2:12][CH2:13][CH2:14][Li:15].[CH:16]([O:17][B:20]1[O:21][C:22]([CH3:27])([CH3:28])[C:23]([CH3:25])([CH3:26])[O:24]1)([CH3:18])[CH3:19]>>[c:2]1([B:20]2[O:21][C:22]([CH3:27])([CH3:28])[C:23]([CH3:25])([CH3:26])[O:24]2)[c:3]([CH:8]2[CH2:9][CH2:10]2)[n:4][n:5]([CH3:7])[cH:6]1