反应详情

温度

100 °C

2.56 mmol of 6-[(triphenylmethyl)thio]-1,3,3,-hexanetricarboxylic acid (III) (1.36 g) was dissolved in 5 ml of dimethylsulfoxide and the solution was heated to 100° C. for 1 hour, evaporated to dryness, dissolved in water and precipitated by addition of 1 M sulfuric acid. The precipitated oil solidified after 1 hour treatment in an ultrasound bath. The solid was filtered off, washed with water and dried in a dessicator. Yield 1.1 g of 6-[(triphenylmethyl)thio]-1,3-hexanedicarboxylic acid (IV) (89% two steps from II), 13C-NMR (MeOH) δ 27.9, 28.6, 33.0 (two carbons), 33.1, 45.9, 68.1, 128.1, 129.2, 131.2, 146.8, 177.1, 179.4.

1. customevaporated to dryness
2. dissolutiondissolved in water
3. customprecipitated by addition of 1 M sulfuric acid
4. filtrationThe solid was filtered off
5. washwashed with water
6. customdried in a dessicator