反応 #818358

反応方程式

1.1

(+/−)-5-Bromo-2,3-dihydro-1H-inden-1-ol

thionyl chloride

→

(+/−)-5-Bromo-1-chloro-2,3-dihydro-1H-indene

溶媒

DCM

反応条件

後処理

1. 1
   抽出extracted with EtOAc
2. 2
   乾燥The organic layer was dried (MgSO4)
3. 3
   ろ過filtered
4. 4
   濃縮concentrated under vacuum
5. 5
   その他The resulting material was chromatographed on a silica gel column
6. 6
   洗浄eluting with 5-10% EtOAc in hexane
7. 7
   その他to afford 1.2

実験手順

A solution of 1.1 (2.0 g) in DCM (10 mL) in an ice-bath, was treated with thionyl chloride (10 mL). The reaction mixture was stirred at room temperature for 2 hours. The reaction mixture was then poured into ice water and extracted with EtOAc. The organic layer was dried (MgSO4), filtered, and concentrated under vacuum. The resulting material was chromatographed on a silica gel column, eluting with 5-10% EtOAc in hexane, to afford 1.2. 1H NMR (DMSO-d6) δ 7.54 (s, 1H), 7.45 (dd, 1H, J1=1.0 Hz, J2=8.50 Hz), 7.37 (d, 1H, J=8.0 Hz), 3.07 (m, 1H), 5.60 (q, 1H), 2.93 (m, 1H), 2.59 (m, 1H), 2.26 (m, 1H).

出典