تفاعل #94088

ord-97b77afb4189423cbe59a6a3ae2f079d

الكواشف

لا شيء

المذيبات

ظروف التفاعل

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

المعالجة

  1. 1
    استخلاصextracted with ethyl acetate
  2. 2
    غسيلThe extracts were washed with water
  3. 3
    تركيزan aqueous solution of sodium chloride and concentrated under reduced pressure
  4. 4
    workup.DISTILLATIONThe residue was purified by distillation in vacuo
  5. 5
    أخرىto give 18.0 g

الإجراء التجريبي

120 ml. of a 1.3M n-butyllithium solution in n-hexane were added dropwise to a solution of 18.8 ml. of thioanisole in 240 ml. of tetrahydrofuran at -20° C. and the reaction mixture was stirred at that temperature for 2 hours. After cooling to -70° C., 16.4 g. of dimethyldisulphide were added to the reaction mixture, which was then stirred at -70° C. for 15 minutes and at room temperature for 1 hour. The reaction mixture was poured into dilute aqueous hydrochloric acid and extracted with ethyl acetate. The extracts were washed with water and an aqueous solution of sodium chloride and concentrated under reduced pressure. The residue was purified by distillation in vacuo to give 18.0 g. of the title compound having the following physical characteristics:

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US04128720uspto-grants-1978_12