反応 #1785135

反応方程式

Sodium tert-butoxide

2-Dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl

4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline

2-Bromo-6-benzyloxypyridine

→

desired product

収率 65.0%

6-(benzyloxy)-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyridin-2-amine

収率 65.0%

溶媒

tert-Butyl alcohol

反応条件

後処理

1. 1
   その他which was purged by nitrogen for a few minutes
2. 2
   その他The dark orange mixture was microwaved at 120° C. for 15 minutes
3. 3
   その他the reaction was quenched by 10% citric acid (aqueous)
4. 4
   その他After purification on silica gel column

実験手順

Sodium tert-butoxide (556 mg, 5.78 mmol), 2-Dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl (98 mg, 0.25 mmol), Bis(dibenzylideneacetone)palladium(0) (96 mg, 0.17 mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (ou) (1.00 g, 4.57 mmol) and 2-Bromo-6-benzyloxypyridine (ot) (1.10 g, 4.15 mmol) were mixed in tert-Butyl alcohol (20 mL), which was purged by nitrogen for a few minutes. The dark orange mixture was microwaved at 120° C. for 15 minutes, and the reaction was quenched by 10% citric acid (aqueous). After purification on silica gel column, the desired product ow (1.08 g 65% yield) was obtained as slightly brown solid: 1H NMR (400 MHz, CDCl3) δ 7.75 (d, J=8.4 Hz, 2H), 7.49-7.41 (m, 3H), 7.41-7.34 (m, 4H), 7.34-7.27 (m, 1H), 6.46 (s, 1H), 6.44 (d, J=7.9 Hz, 1H), 6.30 (d, J=7.9 Hz, 1H), 5.37 (s, 2H), 1.34 (s, 12H); LC-MS m/z=403 (M+H).

出典