تفاعل #86683

ord-788773e4277e4723a64b3f7ceea140f5

المذيبات

ظروف التفاعل

درجة الحرارة
80°CELSIUS
الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرىThe flask was purged with argon for not less than 90 minutes
  2. 2
    أخرىpurged with argon for not less than 30 minutes
  3. 3
    أخرىA 500-mL round bottom flask equipped with a magnetic stir bar
  4. 4
    أخرىpurged with argon for not less than 60 minutes
  5. 5
    workup.STIRRINGwhile stirring at 50° C
  6. 6
    درجة الحرارةhad been cooled to room temperature
  7. 7
    درجة الحرارةThe temperature of the 600-mL flask was raised to 90° C.
  8. 8
    workup.STIRRINGthe contents were stirred for 18 hours
  9. 9
    درجة الحرارةto cool down to 40° C.
  10. 10
    ترشيحfiltered
  11. 11
    غسيلrinsed with ethyl acetate (140 mL)

الإجراء التجريبي

A 600-mL, stainless steel Parr® pressure reactor equipped with an overhead stirrer was charged with tris(dibenzylideneacetone)dipalladium(0) (0.229 g, 0.251 mmol), di-tert-butyl(2′,4′,6′-triisopropyl-3,6-dimethoxybiphenyl-2-yl)phosphine (0.291 g, 0.601 mmol) and milled potassium phosphate tribasic (11.70 g, 55.1 mmol). The flask was purged with argon for not less than 90 minutes. Ethyl acetate (140 mL) was taken in a 250-mL, round bottom flask, purged with argon for not less than 30 minutes and was transferred to the 600-mL reactor using a cannula under argon atmosphere. The contents of the 600-mL reactor were heated to 80° C. and stirred at this temperature for 30 minutes. A 500-mL round bottom flask equipped with a magnetic stir bar was charged with 6-(3-tert-butyl-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-methoxyphenyl)naphthalen-2-yl 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate (35.0 g, 50.1 mmol), methanesulfonamide (5.72 g, 60.1 mmol) and ethyl acetate (280 mL), purged with argon for not less than 60 minutes while stirring at 50° C. This solution was transferred to the 600-mL reactor that had been cooled to room temperature using a cannula under argon atmosphere. The temperature of the 600-mL flask was raised to 90° C., and the contents were stirred for 18 hours. The reaction mixture was allowed to cool down to 40° C., filtered and rinsed with ethyl acetate (140 mL). Solid (41.50 g) was obtained after drying for 2 hours on high vacuum. This solid contained the titled product (23.06 g, 93%).

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US09434698B2uspto-grants-2016_09