تفاعل #1960499

معادلة التفاعل

DIAD

3,4-difluoro-6-(4-propylcyclohexyl)-5,6,7,8-tetrahydronaphthalen-2-ol

1-hexyn-3-ol

triphenylphosphine

→

6-(1-ethynylbutoxy)-7,8-difluoro-2-(4-propylcyclohexyl)-1,2,3,4-tetrahydronaphthalene

المذيبات

water

THF

THF

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةcooling
2. 2
   استخلاصthe mixture is extracted a number of times with MTBE
3. 3
   غسيلThe combined organic phases are washed with water and saturated sodium chloride soln
4. 4
   أخرى, and the solution is dried
5. 5
   أخرىafter removal of the solvents
6. 6
   أخرىis purified by column chromatography (SiO2, n-heptane MTBE=2:1)

الإجراء التجريبي

7.0 g (22.7 mmol) of 3,4-difluoro-6-(4-propylcyclohexyl)-5,6,7,8-tetrahydronaphthalen-2-ol are initially introduced in 90 ml of THF together with 2.70 ml (24.0 mmol) of 1-hexyn-3-ol and 6.60 g (25.2 mmol) of triphenylphosphine. 5.3 ml (46.8 mmol) of DIAD in 10 ml of THF are added over the course of 20 min with ice-cooling. After 19 h at RT, water is added, and the mixture is extracted a number of times with MTBE. The combined organic phases are washed with water and saturated sodium chloride soln., and the solution is dried using sodium sulfate. The residue remaining after removal of the solvents is purified by column chromatography (SiO2, n-heptane MTBE=2:1), giving 6-(1-ethynylbutoxy)-7,8-difluoro-2-(4-propylcyclohexyl)-1,2,3,4-tetrahydronaphthalene as a colourless solid.

المصدر