Technology Process of 2-[4-(2,2-dimethyl-5-vinyl-[1,3]dioxolan-4-yl)-1-phenylselanyl-butyl]-4,6-bis-ethoxymethoxy-benzoic acid 1-methyl-but-3-enyl ester
There total 11 articles about 2-[4-(2,2-dimethyl-5-vinyl-[1,3]dioxolan-4-yl)-1-phenylselanyl-butyl]-4,6-bis-ethoxymethoxy-benzoic acid 1-methyl-but-3-enyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 7 steps
1.1: 97 percent / second generation Hoveyda-Grubbs catalyst / CH2Cl2 / 4 h
2.1: 85 percent / tert-butyl hydroperoxide; Ti(O-iPr)4 / L-(+)-diethyl tartrate / CH2Cl2 / -40 - -20 °C
3.1: 0.82 g / triethylamine; SO3*Py; dimethylsulfoxide / CH2Cl2 / 0 - 20 °C
4.1: NaHMDS / tetrahydrofuran / 0 - 25 °C
4.2: 0.65 g / tetrahydrofuran / 0.17 h
5.1: 100 percent / Sc(OTf)3 / tetrahydrofuran; H2O / 2.5 h / 20 °C
6.1: 70 percent / TsOH*H2O / CH2Cl2 / 20 °C
7.1: 75 percent / hexamethylphosphoramide; lithium diisopropylamide / tetrahydrofuran / -78 °C
With
titanium(IV) isopropylate; tert.-butylhydroperoxide; N,N,N,N,N,N-hexamethylphosphoric triamide; pyridine-SO3 complex; sodium hexamethyldisilazane; toluene-4-sulfonic acid; dimethyl sulfoxide; triethylamine; scandium tris(trifluoromethanesulfonate); lithium diisopropyl amide;
[1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(O-isopropoxyphenylmethylene)ruthenium; diethyl (2R,3R)-tartrate;
In
tetrahydrofuran; dichloromethane; water;
2.1: Sharpless epoxidation / 4.2: Wittig olefination;
DOI:10.1002/anie.200600593
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: 85 percent / tert-butyl hydroperoxide; Ti(O-iPr)4 / L-(+)-diethyl tartrate / CH2Cl2 / -40 - -20 °C
2.1: 0.82 g / triethylamine; SO3*Py; dimethylsulfoxide / CH2Cl2 / 0 - 20 °C
3.1: NaHMDS / tetrahydrofuran / 0 - 25 °C
3.2: 0.65 g / tetrahydrofuran / 0.17 h
4.1: 100 percent / Sc(OTf)3 / tetrahydrofuran; H2O / 2.5 h / 20 °C
5.1: 70 percent / TsOH*H2O / CH2Cl2 / 20 °C
6.1: 75 percent / hexamethylphosphoramide; lithium diisopropylamide / tetrahydrofuran / -78 °C
With
titanium(IV) isopropylate; tert.-butylhydroperoxide; N,N,N,N,N,N-hexamethylphosphoric triamide; pyridine-SO3 complex; sodium hexamethyldisilazane; toluene-4-sulfonic acid; dimethyl sulfoxide; triethylamine; scandium tris(trifluoromethanesulfonate); lithium diisopropyl amide;
diethyl (2R,3R)-tartrate;
In
tetrahydrofuran; dichloromethane; water;
1.1: Sharpless epoxidation / 3.2: Wittig olefination;
DOI:10.1002/anie.200600593
- Guidance literature:
-
Multi-step reaction with 2 steps
1: 70 percent / TsOH*H2O / CH2Cl2 / 20 °C
2: 75 percent / hexamethylphosphoramide; lithium diisopropylamide / tetrahydrofuran / -78 °C
With
N,N,N,N,N,N-hexamethylphosphoric triamide; toluene-4-sulfonic acid; lithium diisopropyl amide;
In
tetrahydrofuran; dichloromethane;
DOI:10.1002/anie.200600593