Реакция #955956

Уравнение реакции

pyruvic acid

n-octanol

→

octyl pyruvate

Выход 76.1%

Растворители

toluene

Условия реакции

Обработка

1. 1
   Температураrefluxed for 16 hours
2. 2
   Другоеwhile removing water under a nitrogen gas stream
3. 3
   Другоеobtaining a first reaction solution
4. 4
   ДругоеThereafter, toluene was removed under reduced pressure (40 mmHg)
5. 5
   Другоеan evaporator
6. 6
   workup.DISTILLATIONthe residue was purified by reduced pressure distillation (2 mmHg, 82 to 92° C.)

Методика

A toluene (1 L) solution of pyruvic acid (440 g, 5.0 mol), n-octanol (651 g, 5.0 mol) and p-toluenesulfonic acid monohydrate (2.5 g) was heated and refluxed for 16 hours while removing water under a nitrogen gas stream, thereby obtaining a first reaction solution. Next, the first reaction solution was cooled to room temperature (25° C.). Thereafter, toluene was removed under reduced pressure (40 mmHg) using an evaporator, and the residue was purified by reduced pressure distillation (2 mmHg, 82 to 92° C.), thereby obtaining octyl pyruvate (762 g, yield 76%).

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