2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

Base Information

Chemical Name:2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one
CAS No.:131530-52-4
Molecular Formula:C₂₂H₃₀O₄
Molecular Weight:358.478
Hs Code.:

Synonyms:2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

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Chemical Property of 2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

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Technology Process of 2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

There total 9 articles about 2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 23.0%

: 2-[6-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-3,5-dimethyl-4-oxo-4H-pyran-2-yl]-propionaldehyde

: 131530-52-4
2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

: 131613-86-0
2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((S)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

Guidance literature:: With sodium tetrahydroborate; In methanol; at 0 ℃;
DOI:10.1016/S0040-4039(00)97880-8

Reference yield:

: 131530-47-7
(4R,5S)-4-Ethyl-5-methyl-2-phenyl-[1,3]dioxane

: 131530-52-4
2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

Guidance literature:: Multi-step reaction with 7 steps

1: 1.) DIBAL-H 2.) Jones oxid. / 1.) CH₂Cl₂, -10 deg C

2: (COCl)2 / benzene

4: 1.) LDA / 1.) THF, -78 deg C

5: 79 percent / Ph₃P / CCl₄; tetrahydrofuran / 7 h / Ambient temperature

6: 1.) LDA / THF, -50 to -10 deg C

7: 24 percent / NaBH₄ / methanol / 0 °C

With sodium tetrahydroborate; oxalyl dichloride; Jones oxid; diisobutylaluminium hydride; triphenylphosphine; lithium diisopropyl amide; In tetrahydrofuran; methanol; tetrachloromethane; benzene;
DOI:10.1016/S0040-4039(00)97880-8

Reference yield:

: 88481-60-1
(4S,5S)-(4-Hydroxymethyl)-5-methyl-2-phenyl-1,3-dioxan

: 131530-52-4
2-((1R,2R)-2-Benzyloxy-1-methyl-butyl)-6-((R)-2-hydroxy-1-methyl-ethyl)-3,5-dimethyl-pyran-4-one

Guidance literature:: Multi-step reaction with 9 steps

1: 98 percent / pyridine

2: 89 percent / diethyl ether / -30 to -20 degC

3: 1.) DIBAL-H 2.) Jones oxid. / 1.) CH₂Cl₂, -10 deg C

4: (COCl)2 / benzene

6: 1.) LDA / 1.) THF, -78 deg C

7: 79 percent / Ph₃P / CCl₄; tetrahydrofuran / 7 h / Ambient temperature

8: 1.) LDA / THF, -50 to -10 deg C

9: 24 percent / NaBH₄ / methanol / 0 °C

With pyridine; sodium tetrahydroborate; oxalyl dichloride; Jones oxid; diisobutylaluminium hydride; triphenylphosphine; lithium diisopropyl amide; In tetrahydrofuran; methanol; tetrachloromethane; diethyl ether; benzene;
DOI:10.1016/S0040-4039(00)97880-8