تفاعل #62236

معادلة التفاعل

1,2,3-trimethoxybenzene

mono-methyl succinate

→

55

المردود 72.7%

4-Oxo-4-(2,3,4-trimethoxy-phenyl)-butyric acid methyl ester

المردود 72.7%

المذيبات

ظروف التفاعل

المعالجة

1. 1
   workup.ADDITIONThe reaction mixture was then poured into a 1000 mL beaker
2. 2
   workup.STIRRINGstirred well until all the product
3. 3
   أخرىwas precipitated out
4. 4
   ترشيحThe tan colored product was then filtered
5. 5
   غسيلwashed with water
6. 6
   أخرىdried under vacuum

الإجراء التجريبي

A mixture of 75 g of polyphosphoric acid (Acros), 1,2,3-trimethoxybenzene (5.0 g, 29.73 mmol), and mono-methyl succinate (5.9 g, 44.59 mmol) were mechanically stirred at 45° C. for 2.5 h. The reaction mixture was then poured into a 1000 mL beaker containing round 250 mL of ice, and stirred well until all the product was precipitated out. The tan colored product was then filtered and washed with water and dried under vacuum. 6.1 g (72%) of 55 was obtained, which was pure by NMR.

المصدر