Technology Process of [2,3,2',3'-tetrahydro-5,5'-bi(1,4-benzodioxin)-6,6'-diyl]bis-(diphenylphosphane oxide)
There total 5 articles about [2,3,2',3'-tetrahydro-5,5'-bi(1,4-benzodioxin)-6,6'-diyl]bis-(diphenylphosphane oxide) which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
(2,3-dihydro-1,4-benzodioxin-6-yl)phospane oxide;
With
tert.-butyl lithium;
In
tetrahydrofuran;
at -100 - -70 ℃;
With
iron(III) chloride;
at -70 - 20 ℃;
DOI:10.1016/S0040-4039(02)02637-0
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: 100 percent / NBS / dimethylformamide / 24 h / 20 °C
2.1: n-BuLi / tetrahydrofuran; hexane / 1.17 h / -78 °C
2.2: tetrahydrofuran; hexane / -70 - 0 °C
3.1: aq. H2O2 / methanol / 1 h / 20 °C
4.1: t-BuLi / pentane; tetrahydrofuran / 3.5 h / -100 - -70 °C
4.2: I2 / pentane; tetrahydrofuran / 2 h / -70 - 0 °C
5.1: Cu / dimethylformamide / 4 h / 140 °C
With
N-Bromosuccinimide; n-butyllithium; dihydrogen peroxide; tert.-butyl lithium; copper;
In
tetrahydrofuran; methanol; hexane; N,N-dimethyl-formamide; pentane;
5.1: Ullmann reaction;
DOI:10.1002/ejoc.200200634
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: n-BuLi / tetrahydrofuran; hexane / 1.17 h / -78 °C
1.2: tetrahydrofuran; hexane / -70 - 0 °C
2.1: aq. H2O2 / methanol / 1 h / 20 °C
3.1: t-BuLi / pentane; tetrahydrofuran / 3.5 h / -100 - -70 °C
3.2: I2 / pentane; tetrahydrofuran / 2 h / -70 - 0 °C
4.1: Cu / dimethylformamide / 4 h / 140 °C
With
n-butyllithium; dihydrogen peroxide; tert.-butyl lithium; copper;
In
tetrahydrofuran; methanol; hexane; N,N-dimethyl-formamide; pentane;
4.1: Ullmann reaction;
DOI:10.1002/ejoc.200200634