Technology Process of Carbonic acid (5R,6R,7R,8R)-6,7-bis-ethoxycarbonyloxymethyl-8-(3,4,5-trimethoxy-phenyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxol-5-yl ester ethyl ester
There total 2 articles about Carbonic acid (5R,6R,7R,8R)-6,7-bis-ethoxycarbonyloxymethyl-8-(3,4,5-trimethoxy-phenyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxol-5-yl ester ethyl ester which
guide to synthetic route it.
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synthetic route:
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256331-28-9
Carbonic acid (5R,6R,7R,8R)-6,7-bis-ethoxycarbonyloxymethyl-8-(3,4,5-trimethoxy-phenyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxol-5-yl ester ethyl ester
- Guidance literature:
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With
pyridine;
at -20 ℃;
DOI:10.1016/S0040-4039(99)01932-2
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256331-28-9
Carbonic acid (5R,6R,7R,8R)-6,7-bis-ethoxycarbonyloxymethyl-8-(3,4,5-trimethoxy-phenyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxol-5-yl ester ethyl ester
- Guidance literature:
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Multi-step reaction with 2 steps
1: 71 percent / LiAlH4 / tetrahydrofuran / 20 °C
2: 100 percent / pyridine / -20 °C
With
pyridine; lithium aluminium tetrahydride;
In
tetrahydrofuran;
1: Reduction / 2: Esterification;
DOI:10.1016/S0040-4039(99)01932-2
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-
256331-28-9
Carbonic acid (5R,6R,7R,8R)-6,7-bis-ethoxycarbonyloxymethyl-8-(3,4,5-trimethoxy-phenyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxol-5-yl ester ethyl ester
- Guidance literature:
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Multi-step reaction with 5 steps
1: 1-methylnaphtalene / 170 °C
2: O3; Me2S / methanol; CHCl3 / -78 °C
3: 24 percent / BH3 / tetrahydrofuran / 20 °C
4: 87 percent / H2 / Pd/C / ethyl acetate
5: 64 percent / PPh3; DEAD / tetrahydrofuran
With
dimethylsulfide; borane; hydrogen; ozone; 1-Methylnaphthalene; triphenylphosphine; diethylazodicarboxylate;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; chloroform; ethyl acetate;
1: Elimination / 2: Oxidation / 3: Reduction / 4: Reduction / 5: Elimination;
DOI:10.1016/S0040-4039(99)01932-2