Technology Process of (S)-2-[(4S,5R,6R)-2,2,5-Trimethyl-6-(2,3,5-trimethoxy-4-methyl-phenyl)-[1,3]dioxan-4-yl]-propan-1-ol
There total 11 articles about (S)-2-[(4S,5R,6R)-2,2,5-Trimethyl-6-(2,3,5-trimethoxy-4-methyl-phenyl)-[1,3]dioxan-4-yl]-propan-1-ol which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 8 steps
1.1: 96 percent / TiCl4 / benzene / 0.5 h / 0 °C
2.1: 85 percent / mCPBA / CH2Cl2 / 20 °C
3.1: 76 percent / BF3OMe2 / 3 h / 90 °C
4.1: 99 percent / K2CO3 / acetone / 40 h / 20 °C
5.1: LiHMDS / tetrahydrofuran / 0.75 h / -78 °C
5.2: Ti(i-PrO)3Cl / tetrahydrofuran / 1 h / -78 - -40 °C
5.3: 58 percent / tetrahydrofuran / 3 h / -78 - -40 °C
6.1: Me4NBH(OAc)3 / acetonitrile; acetic acid / 16 h / -30 - 20 °C
7.1: 93 percent / 18 h / 20 °C
8.1: 83 percent / DDQ; 4 Angstroem molecular sieves / CH2Cl2; H2O; various solvent(s) / 0.5 h
With
boron trifluoride dimethyl etherate; 4 A molecular sieve; titanium tetrachloride; potassium carbonate; 3-chloro-benzenecarboperoxoic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone; lithium hexamethyldisilazane; tetramethylammonium triacetoxyborohydride;
In
tetrahydrofuran; dichloromethane; water; acetic acid; acetone; acetonitrile; benzene;
1.1: Friedel-Crafts acylation / 2.1: Bayer-Villiger oxidation / 3.1: ortho-Fries rearrangement;
DOI:10.1002/1521-3773(20010903)40:17<3186::AID-ANIE3186>3.0.CO;2-W
- Guidance literature:
-
Multi-step reaction with 7 steps
1.1: 85 percent / mCPBA / CH2Cl2 / 20 °C
2.1: 76 percent / BF3OMe2 / 3 h / 90 °C
3.1: 99 percent / K2CO3 / acetone / 40 h / 20 °C
4.1: LiHMDS / tetrahydrofuran / 0.75 h / -78 °C
4.2: Ti(i-PrO)3Cl / tetrahydrofuran / 1 h / -78 - -40 °C
4.3: 58 percent / tetrahydrofuran / 3 h / -78 - -40 °C
5.1: Me4NBH(OAc)3 / acetonitrile; acetic acid / 16 h / -30 - 20 °C
6.1: 93 percent / 18 h / 20 °C
7.1: 83 percent / DDQ; 4 Angstroem molecular sieves / CH2Cl2; H2O; various solvent(s) / 0.5 h
With
boron trifluoride dimethyl etherate; 4 A molecular sieve; potassium carbonate; 3-chloro-benzenecarboperoxoic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone; lithium hexamethyldisilazane; tetramethylammonium triacetoxyborohydride;
In
tetrahydrofuran; dichloromethane; water; acetic acid; acetone; acetonitrile;
1.1: Bayer-Villiger oxidation / 2.1: ortho-Fries rearrangement;
DOI:10.1002/1521-3773(20010903)40:17<3186::AID-ANIE3186>3.0.CO;2-W