Technology Process of Phosphine oxide,
diphenyl(spiro[bicyclo[4.2.0]oct-1(6)-ene-3,2'-[1,3]dioxolan]-8-ylmethyl)-
There total 3 articles about Phosphine oxide,
diphenyl(spiro[bicyclo[4.2.0]oct-1(6)-ene-3,2'-[1,3]dioxolan]-8-ylmethyl)- which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 1) EtOH, Na, liq.NH3 2) toluene-p-sulfonic acid / 1) THF, -78 deg C 2) CH2Cl2, r.t., 1 h
2: pyridine / 1 h / Ambient temperature
3: NaBr / dimethylformamide / 2 h / 80 - 85 °C
4: 2) 5 percent hydrogen peroxide / 1) THF, -20 deg C, 10 min 2) CHCl3, room temperature, 30 min
With
pyridine; ethanol; ammonia; dihydrogen peroxide; sodium; toluene-4-sulfonic acid; sodium bromide;
In
N,N-dimethyl-formamide;
DOI:10.1016/S0040-4020(01)91875-7
- Guidance literature:
-
Multi-step reaction with 2 steps
1: NaBr / dimethylformamide / 2 h / 80 - 85 °C
2: 2) 5 percent hydrogen peroxide / 1) THF, -20 deg C, 10 min 2) CHCl3, room temperature, 30 min
With
dihydrogen peroxide; sodium bromide;
In
N,N-dimethyl-formamide;
DOI:10.1016/S0040-4020(01)91875-7
- Guidance literature:
-
With
dihydrogen peroxide;
Yield given. Multistep reaction;
1) THF, -20 deg C, 10 min 2) CHCl3, room temperature, 30 min;
DOI:10.1016/S0040-4020(01)91875-7