Sodium Hydroxide → 3-(2-Biphenylyl)-2-ethylpropionyl chloride
Reaktionsgleichung
[OH-].[Na+].[C:3]1([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH2:9][CH:10]([CH2:14][CH3:15])[C:11](O)=[O:12].S(Cl)([Cl:24])=O>>[C:3]1([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH2:9][CH:10]([CH2:14][CH3:15])[C:11]([Cl:24])=[O:12]Komponenten
4
Versuchsvorschrift
To a 100-ml three-necked round flask (equipped with a stirrer tip, a Dimroth condenser, a thermometer and a trap of NaOH) were introduced 13.3 g (52.4 mmol) of 3-(2-biphenylyl)-2-ethylpropionic acid and 25.9 ml (355 mmol) of thionyl chloride, and they were refluxed for 2.5 hours with heating in a nitrogen atmosphere. After the reaction was completed, the unreacted thionyl chloride was distilled off under reduced pressure to obtain 15.2 g of a crude product as a yellow orange liquid. This acid chloride was used for the next reaction without further purification. The properties of the product thus obtained are described below.