반응 #1066149

반응 방정식

pyridine

triphenylmethyl methacrylate

water

→

triphenylmethyl alcohol

용매

THF

반응 조건

후처리

1. 1
   기타was quantitatively formed
2. 2
   기타After the amine salt was removed by filtration
3. 3
   기타the solvent and excess pyridine were evaporated
4. 4
   기타The intended product was obtained as a syrup
5. 5
   기타An attempt to recrystallize it from ether and n-hexane
6. 6
   기타failed, since hydrolysis
7. 7
   기타contained in the solvents for recrystallization

실험 절차

The procedure of Example 2 was repeated except that 3.96 g (0.05 mol) of dry pyridine was used in place of triethylamine and the reaction was carried out in THF. It was confirmed when the reaction solution was examined by means of thin-layer chromatography that triphenylmethyl methacrylate was quantitatively formed. After the amine salt was removed by filtration, the solvent and excess pyridine were evaporated. The intended product was obtained as a syrup. An attempt to recrystallize it from ether and n-hexane failed, since hydrolysis took place due to water contained in the solvents for recrystallization and triphenylmethyl alcohol was formed.

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