Реакция #48673

Уравнение реакции

[(S)-1-benzyloxymethyl-2-(2-iodo-1,1-diphenylethoxy)-ethyl]-carbamic acid tert-butyl ester

sodium hydride

→

desired compound

(S)-5-benzyloxymethyl-2,2-diphenyl-morpholine-4-carboxylic acid tert-butyl ester

Растворители

ethyl acetate

N,N-dimethylformamide

Условия реакции

Обработка

1. 1
   ТемператураHeat
2. 2
   Другоеreaction mixture to 60° C. for 4 hours
3. 3
   ПромывкаWash with water and saturated aqueous sodium chloride
4. 4
   Сушкаdry (magnesium sulfate)
5. 5
   Фильтрацияfilter
6. 6
   Концентрированиеconcentrate
7. 7
   ДругоеPurify on silica gel eluting with 0:100 to 20:80 ethyl acetate

Методика

To [(S)-1-benzyloxymethyl-2-(2-iodo-1,1-diphenylethoxy)-ethyl]-carbamic acid tert-butyl ester (4.74 g, 8.07 mmol) in N,N-dimethylformamide (70 mL) at room temperature add sodium hydride (0.452 g, 11.3 mmol, 60% dispersion in mineral oil). Heat reaction mixture to 60° C. for 4 hours, cool to room temperature and dilute with ethyl acetate (˜400 mL). Wash with water and saturated aqueous sodium chloride, dry (magnesium sulfate), filter and concentrate. Purify on silica gel eluting with 0:100 to 20:80 ethyl acetate:hexanes to give the desired compound as an oil.

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