Technology Process of C,C',C''-[(1S,3'R,4'S,5'R,6'R)-6-[(4-Ethylphenyl)methyl]-3',4',5',6'-tetrahydro-6'-[[(methoxycarbonyl)oxy]methyl]spiro[isobenzofuran-1(3H),2'-[2H]pyran]-3',4',5'-triyl] tris(C-methyl carbonate)
There total 10 articles about C,C',C''-[(1S,3'R,4'S,5'R,6'R)-6-[(4-Ethylphenyl)methyl]-3',4',5',6'-tetrahydro-6'-[[(methoxycarbonyl)oxy]methyl]spiro[isobenzofuran-1(3H),2'-[2H]pyran]-3',4',5'-triyl] tris(C-methyl carbonate) which
guide to synthetic route it.
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synthetic route:
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903565-83-3
(1S,3′R,4′S,5′S,6′R)-6-[(4-ethylphenyl)methyl]-3′,4′,5′,6′-tetrahydro-6′-(hydroxymethyl)-spiro[isobenzofuran-1(3H),2′-[2H]pyran]-3′,4′,5′-triol
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1201913-68-9
(1S,3′R,4′R,5′S,6′R)-6-[(4-ethylphenyl)methyl]-3′,4′,5′,6′-tetrahydro-3′,4′,5′-tris(methoxycarbonyloxy)-6′-[(methoxycarbonyloxy)methyl]spiro[2-benzofuran-1(3H),2-[2H]pyran]
- Guidance literature:
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With
dmap;
In
dichloromethane;
at 0 - 20 ℃;
for 20.1667h;
Inert atmosphere;
DOI:10.1021/acs.joc.5b02734
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(1S,3′R,4′R,5′S,6′R)-6-[(methoxycarbonyloxy)methyl]-3′,4′,5′,6′-tetrahydro-3′,4′,5′-tris(methoxycarbonyloxy)-6′-[(methoxycarbonyloxy)methyl]spiro[2-benzofuran-1(3H),2-[2H]pyran]
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1201913-68-9
(1S,3′R,4′R,5′S,6′R)-6-[(4-ethylphenyl)methyl]-3′,4′,5′,6′-tetrahydro-3′,4′,5′-tris(methoxycarbonyloxy)-6′-[(methoxycarbonyloxy)methyl]spiro[2-benzofuran-1(3H),2-[2H]pyran]
- Guidance literature:
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(1S,3′R,4′R,5′S,6′R)-6-[(methoxycarbonyloxy)methyl]-3′,4′,5′,6′-tetrahydro-3′,4′,5′-tris(methoxycarbonyloxy)-6′-[(methoxycarbonyloxy)methyl]spiro[2-benzofuran-1(3H),2-[2H]pyran]; 4-ethylphenylboronic acid;
With
1,1'-bis-(diphenylphosphino)ferrocene; palladium diacetate; potassium carbonate;
In
1,2-dimethoxyethane;
Inert atmosphere;
With
N-acetylcystein; ethyl acetate;
In
1,2-dimethoxyethane;
for 1h;
Reagent/catalyst;
Solvent;
Catalytic behavior;
Inert atmosphere;
Cooling;
DOI:10.1021/acs.joc.5b02734
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1201913-68-9
(1S,3′R,4′R,5′S,6′R)-6-[(4-ethylphenyl)methyl]-3′,4′,5′,6′-tetrahydro-3′,4′,5′-tris(methoxycarbonyloxy)-6′-[(methoxycarbonyloxy)methyl]spiro[2-benzofuran-1(3H),2-[2H]pyran]
- Guidance literature:
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Multi-step reaction with 6 steps
1.1: borane-THF / tetrahydrofuran / 7 h / 0 - 35 °C / Inert atmosphere
2.1: pyridinium p-toluenesulfonate / tetrahydrofuran / 2 h / 0 - 10 °C / Inert atmosphere
3.1: n-butyllithium / toluene; hexane / 1.08 h / 5 °C / Inert atmosphere
3.2: 2.5 h / Inert atmosphere
4.1: toluene-4-sulfonic acid / methanol; tetrahydrofuran / 2 h / 0 - 20 °C / Inert atmosphere
4.2: 1 h / 0 °C / Inert atmosphere
5.1: dmap / dichloromethane / 4.67 h / -10 - 20 °C / Inert atmosphere
6.1: potassium carbonate; palladium diacetate; 1,1'-bis-(diphenylphosphino)ferrocene / 1,2-dimethoxyethane / Inert atmosphere
6.2: 1 h / Inert atmosphere; Cooling
With
dmap; 1,1'-bis-(diphenylphosphino)ferrocene; n-butyllithium; borane-THF; palladium diacetate; pyridinium p-toluenesulfonate; potassium carbonate; toluene-4-sulfonic acid;
In
tetrahydrofuran; methanol; 1,2-dimethoxyethane; hexane; dichloromethane; toluene;
6.1: |Suzuki Coupling;
DOI:10.1021/acs.joc.5b02734