Technology Process of (2R,2'S,5'S,2''R,5''R)-5''-((S)-4-Benzyloxy-1-hydroxy-butyl)-hexahydro-[2,2';5',2'']terfuran-5-one
There total 11 articles about (2R,2'S,5'S,2''R,5''R)-5''-((S)-4-Benzyloxy-1-hydroxy-butyl)-hexahydro-[2,2';5',2'']terfuran-5-one which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
camphor-10-sulfonic acid;
In
methanol; dichloromethane;
at 0 ℃;
DOI:10.1021/jo050697c
- Guidance literature:
-
Multi-step reaction with 9 steps
1.1: 80 percent / NaHCO3 / acetonitrile / 8 h / Heating
2.1: NaHMDS / tetrahydrofuran / 2 h / -78 °C
2.2: HMPA / tetrahydrofuran / 3.5 h / -78 - 0 °C
3.1: TBAF / tetrahydrofuran / 4 h
4.1: diisopropyl azodicarboxylate; PPh3 / tetrahydrofuran / 12 h / 20 °C
5.1: aqueous NaOH / methanol / 2 h / 60 °C
6.1: PTSA*H2O / CH2Cl2 / 1 h / 20 °C
7.1: 76 percent / TFAA; Re2O7; 2,6-lutidine / CH2Cl2 / 6 h / 0 - 20 °C
8.1: oxone; K2CO3; Na2B4O7*10H2O / L-fructose-based (+)-Shi catalyst; nBu4NHSO4 / H2O; various solvent(s); acetonitrile / 2.5 h / 0 °C
9.1: camphorsulfonic acid / CH2Cl2; methanol / 0 °C
With
2,6-dimethylpyridine; borax; Oxone; sodium hydroxide; di-isopropyl azodicarboxylate; camphor-10-sulfonic acid; tetrabutyl ammonium fluoride; sodium hexamethyldisilazane; sodium hydrogencarbonate; potassium carbonate; toluene-4-sulfonic acid; rhenium(VII) oxide; triphenylphosphine; trifluoroacetic anhydride;
L-fructose-based (+)-Shi catalyst; tetra(n-butyl)ammonium hydrogensulfate;
In
tetrahydrofuran; methanol; dichloromethane; water; acetonitrile;
2.2: Wittig reaction / 4.1: Mitsunobu reaction / 8.1: Shi asymmetric epoxidation;
DOI:10.1021/jo050697c
- Guidance literature:
-
Multi-step reaction with 6 steps
1: diisopropyl azodicarboxylate; PPh3 / tetrahydrofuran / 12 h / 20 °C
2: aqueous NaOH / methanol / 2 h / 60 °C
3: PTSA*H2O / CH2Cl2 / 1 h / 20 °C
4: 76 percent / TFAA; Re2O7; 2,6-lutidine / CH2Cl2 / 6 h / 0 - 20 °C
5: oxone; K2CO3; Na2B4O7*10H2O / L-fructose-based (+)-Shi catalyst; nBu4NHSO4 / H2O; various solvent(s); acetonitrile / 2.5 h / 0 °C
6: camphorsulfonic acid / CH2Cl2; methanol / 0 °C
With
2,6-dimethylpyridine; borax; Oxone; sodium hydroxide; di-isopropyl azodicarboxylate; camphor-10-sulfonic acid; potassium carbonate; toluene-4-sulfonic acid; rhenium(VII) oxide; triphenylphosphine; trifluoroacetic anhydride;
L-fructose-based (+)-Shi catalyst; tetra(n-butyl)ammonium hydrogensulfate;
In
tetrahydrofuran; methanol; dichloromethane; water; acetonitrile;
1: Mitsunobu reaction / 5: Shi asymmetric epoxidation;
DOI:10.1021/jo050697c