反应 #833520

反应方程式

1,4-dimethoxybenzene

Solid 3a

3,3′,4,4′-tetrakisdecyloxybiphenyl

→

4a

收率 84.0%

1,4-dimethoxy-6,7,10,11-tetrakis(decyloxy)triphenylene

收率 84.0%

溶剂

CH2Cl2

反应条件

后处理

1. 1
   其他The reaction mixture was quenched with anhydrous MeOH (30 mL)
2. 2
   workup.ADDITIONwas added to the resulting oil
3. 3
   洗涤washed with MeOH
4. 4
   其他The product was further purified by column chromatography

实验过程

Solid 3a (5.50 g, 7.06 mmol) was added to an ice cold suspension of anhydrous FeCl3 (9.16 g, 56.5 mmol) in dry CH2Cl2 (250 mL). Within 2 min 1,4-dimethoxybenzene (3.90 g, 28.2 mmol) was added to the green reaction mixture. The reaction mixture was allowed to warm slowly to room temperature and then stir for an additional 12 h. The reaction mixture was quenched with anhydrous MeOH (30 mL). The volume of the mixture was reduced to 50 mL under reduced pressure and MeOH (200 mL) was added to the resulting oil. The slightly violet product was called on a frit and washed with MeOH. The product was further purified by column chromatography using a 50% CH2Cl2/50% hexane solvent mixture to afford 4a (RF=0.24) as a colorless solid in 84% yield (mp 69-70° C.).

来源