Technology Process of 4-hydroxy-6-[2-(4-hydroxyphenyl)ethyl]-5,6-dihydropyran-2-one
There total 7 articles about 4-hydroxy-6-[2-(4-hydroxyphenyl)ethyl]-5,6-dihydropyran-2-one which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
hydrogen;
palladium on activated charcoal;
In
tetrahydrofuran; methanol;
at 20 ℃;
under 1034.3 - 2585.74 Torr;
DOI:10.1016/S0968-0896(99)00215-1
- Guidance literature:
-
Multi-step reaction with 7 steps
1.1: K2CO3 / acetone / 18 h / Heating
2.1: 3N LiOH / tetrahydrofuran; methanol / 20 °C
3.1: SOCl2 / 5 h / Heating
4.1: 82 percent / pyridine / CH2Cl2 / 18 h / 20 °C
5.1: 85 percent / LAH / tetrahydrofuran / 1 h / 20 °C
6.1: NaH; n-BuLi / hexane; tetrahydrofuran / 0 - 20 °C
6.2: 50 percent / 0.2N NaOH / tetrahydrofuran / 20 °C
7.1: 80 percent / H2 / 20 percent Pd/C / tetrahydrofuran; methanol / 20 °C / 1034.3 - 2585.74 Torr
With
pyridine; lithium hydroxide; lithium aluminium tetrahydride; n-butyllithium; thionyl chloride; hydrogen; sodium hydride; potassium carbonate;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; hexane; dichloromethane; acetone;
1.1: Esterification / 2.1: Hydrolysis / 3.1: Chlorination / 4.1: Substitution / 5.1: Reduction / 6.1: Condensation / 6.2: Cyclization / 7.1: Hydrogenolysis;
DOI:10.1016/S0968-0896(99)00215-1
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: SOCl2 / 5 h / Heating
2.1: 82 percent / pyridine / CH2Cl2 / 18 h / 20 °C
3.1: 85 percent / LAH / tetrahydrofuran / 1 h / 20 °C
4.1: NaH; n-BuLi / hexane; tetrahydrofuran / 0 - 20 °C
4.2: 50 percent / 0.2N NaOH / tetrahydrofuran / 20 °C
5.1: 80 percent / H2 / 20 percent Pd/C / tetrahydrofuran; methanol / 20 °C / 1034.3 - 2585.74 Torr
With
pyridine; lithium aluminium tetrahydride; n-butyllithium; thionyl chloride; hydrogen; sodium hydride;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; hexane; dichloromethane;
1.1: Chlorination / 2.1: Substitution / 3.1: Reduction / 4.1: Condensation / 4.2: Cyclization / 5.1: Hydrogenolysis;
DOI:10.1016/S0968-0896(99)00215-1