تفاعل #347136

ord-b7c0172d3be94423933cdac74876da78

معادلة التفاعل

O=C1OC(=O)c2c(F)c(F)c(F)c(F)c21
tetrafluorophthalic anhydride
CO
methanol
CO
methanol
COC(=O)c1c(F)c(F)c(F)c(F)c1C(=O)O
3,4,5,6-tetrafluorophthalic acid-monomethyl ester
المردود 98.0%

الكواشف

لا شيء

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرىInto a 100 ml glass reactor equipped with a reflux condenser and a stirrer
  2. 2
    درجة الحرارةunder reflux
  3. 3
    workup.DISTILLATIONwas distilled off

الإجراء التجريبي

Into a 100 ml glass reactor equipped with a reflux condenser and a stirrer, 20 g (0.091 mol) of the tetrafluorophthalic anhydride prepared in Example 3 and 40 ml of methanol were charged, and the mixture was stirred for 2 hours under reflux. After completion of the reaction, methanol was distilled off to obtain 22.5 g of 3,4,5,6-tetrafluorophthalic acid-monomethyl ester. The yield was 98.0%.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US05523476uspto-grants-1996_06