Technology Process of 20,21-bis<<2-(2-hydroxyethoxy)ethoxy>methyl>-1,4,7,12,15,18-hexaoxacyclodocosa-9,20-diene-9,10-dimethanol 20,21-bis(p-toluenesulfonate)
There total 9 articles about 20,21-bis<<2-(2-hydroxyethoxy)ethoxy>methyl>-1,4,7,12,15,18-hexaoxacyclodocosa-9,20-diene-9,10-dimethanol 20,21-bis(p-toluenesulfonate) which
guide to synthetic route it.
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synthetic route:
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79289-91-1,110512-26-0
20,21-bis<<2-(2-hydroxyethoxy)ethoxy>methyl>-1,4,7,12,15,18-hexaoxacyclodocosa-9,20-diene-9,10-dimethanol 20,21-bis(p-toluenesulfonate)
- Guidance literature:
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Multi-step reaction with 7 steps
1: 89 percent / NaH / dimethylformamide / 48 h / Ambient temperature
2: 97 percent / Dowex 50W-X12 / methanol; CH2Cl2 / 12 h / Heating
3: 84 percent / pyridine / 12 h / 0 °C
4: 61 percent / NaH / dimethylformamide / 48 h / Ambient temperature
5: 90 percent / Dowex 50W-X12 / methanol; CH2Cl2 / 12 h / Heating
6: 83 percent / pyridine / 12 h / 0 °C
7: 1.) LiBF4, NaHCO3, 2.) NaBH4 / 1.) Pt anode / 1.) CH3CN, H2O, 2.) EtOH
With
sodium tetrahydroborate; lithium tetrafluoroborate; Dowex 50W-X12; sodium hydride; sodium hydrogencarbonate;
1.) Pt anode;
In
pyridine; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/ja00410a041
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79289-91-1,110512-26-0
20,21-bis<<2-(2-hydroxyethoxy)ethoxy>methyl>-1,4,7,12,15,18-hexaoxacyclodocosa-9,20-diene-9,10-dimethanol 20,21-bis(p-toluenesulfonate)
- Guidance literature:
-
Multi-step reaction with 6 steps
1: 97 percent / Dowex 50W-X12 / methanol; CH2Cl2 / 12 h / Heating
2: 84 percent / pyridine / 12 h / 0 °C
3: 61 percent / NaH / dimethylformamide / 48 h / Ambient temperature
4: 90 percent / Dowex 50W-X12 / methanol; CH2Cl2 / 12 h / Heating
5: 83 percent / pyridine / 12 h / 0 °C
6: 1.) LiBF4, NaHCO3, 2.) NaBH4 / 1.) Pt anode / 1.) CH3CN, H2O, 2.) EtOH
With
sodium tetrahydroborate; lithium tetrafluoroborate; Dowex 50W-X12; sodium hydride; sodium hydrogencarbonate;
1.) Pt anode;
In
pyridine; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/ja00410a041
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79289-88-6
6,7,9,10,12,15,17,18,20,21-decahydro-13,14-bis(2-(2-((tetrahydro-2H-pyran-2-yl)oxy)ethoxy)methyl)-4H,23H-furo(3,4-i)(1,4,7,12,15,18)hexaoxacyclodocosin
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79289-91-1,110512-26-0
20,21-bis<<2-(2-hydroxyethoxy)ethoxy>methyl>-1,4,7,12,15,18-hexaoxacyclodocosa-9,20-diene-9,10-dimethanol 20,21-bis(p-toluenesulfonate)
- Guidance literature:
-
Multi-step reaction with 3 steps
1: 90 percent / Dowex 50W-X12 / methanol; CH2Cl2 / 12 h / Heating
2: 83 percent / pyridine / 12 h / 0 °C
3: 1.) LiBF4, NaHCO3, 2.) NaBH4 / 1.) Pt anode / 1.) CH3CN, H2O, 2.) EtOH
With
sodium tetrahydroborate; lithium tetrafluoroborate; Dowex 50W-X12; sodium hydrogencarbonate;
1.) Pt anode;
In
pyridine; methanol; dichloromethane;
DOI:10.1021/ja00410a041