تفاعل #362397

ord-0c0a7f9cdbb94fbaab85f436ddbb5d29

المذيبات

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    تركيزThe reaction mixture is concentrated in vacuo to a solid which
  2. 2
    workup.DISSOLUTIONis redissolved in 100 ml of THF
  3. 3
    workup.ADDITIONtreated with 25 ml of 20% aqueous sodium hydroxide
  4. 4
    workup.STIRRINGThe mixture is stirred for one hour
  5. 5
    تركيزconcentrated
  6. 6
    استخلاصextracted with diethyl ether
  7. 7
    تجفيفThe ether extracts are dried
  8. 8
    تركيزconcentrated
  9. 9
    أخرىto give a solid which
  10. 10
    أخرىis then purified by crystallization from isopropanol

الإجراء التجريبي

A solution of 1-acetoxy-4-dibenzylamino-2-butene (10.1 g, 33 mmol) and dicyclohexylmethylamine (6.8 g, 32 mmol) in 50 ml of THF is treated with tetrakis(triphenylphosphine)palladium(0) (1.0 g, 0.9 mmol) and stirred at room temperature overnight. The reaction mixture is concentrated in vacuo to a solid which is redissolved in 100 ml of THF and treated with 25 ml of 20% aqueous sodium hydroxide. The mixture is stirred for one hour, concentrated and extracted with diethyl ether. The ether extracts are dried and concentrated to give a solid which is then purified by crystallization from isopropanol. The title compound is obtained in a yield of 9.7 g (65%) as a white solid melting at 61°-62° C.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US05391808uspto-grants-1995_02