تفاعل #583961

ord-3e72a5221bb44a03bd5def1130cdaef6

الكواشف

لا شيء

المذيبات

ظروف التفاعل

درجة الحرارة
70°CELSIUS
الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    درجة الحرارةto reflux under nitrogen atmosphere for 50 hours
  2. 2
    أخرىVolatile solvents were removed in vacuo
  3. 3
    درجة الحرارةThe solution was heated
  4. 4
    درجة الحرارةAfter cooling to 0° C.
  5. 5
    أخرىthe reaction was quenched with methanol (113 amount of DIBAL solution was used)
  6. 6
    workup.ADDITIONfollowed by addition of saturated solution of Rochelle's salt
  7. 7
    استخلاصThe mixture was extracted twice with EtOAc
  8. 8
    غسيلthe organic extracts were washed with brine
  9. 9
    تجفيفdried over Na2SO4

الإجراء التجريبي

A solution of 8.1 g (110 mmol) of n-butylamine and 8.6 g of butyrolactone in 50 ml toluene was allowed to reflux under nitrogen atmosphere for 50 hours. Volatile solvents were removed in vacuo. To a solution of 3.18 gm (20 mmol) of the resultant N-butyl-4-hydroxybutyramide in 50 ml of toluene were added 120 ml (120 mmol) DIBAL(25% W). The solution was heated with stirring at 70° C. for 18 hours. After cooling to 0° C., the reaction was quenched with methanol (113 amount of DIBAL solution was used) followed by addition of saturated solution of Rochelle's salt. The mixture was extracted twice with EtOAc; the organic extracts were washed with brine and dried over Na2SO4.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US06946481B1uspto-grants-2005_09