methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate

Base Information

Chemical Name:methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate
CAS No.:70874-20-3
Molecular Formula:C₁₅H₂₀O₅
Molecular Weight:280.321
Hs Code.:

Synonyms:methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate

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Technology Process of methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate

There total 6 articles about methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate 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: 85.0%

: 70897-16-4
(R)-(+)-3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid methyl ester

: 70874-20-3
methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate

Guidance literature:: With iron(III) chloride; In methanol; diethyl ether; water; for 0.5h;
DOI:10.1021/jo00325a004

Reference yield:

: 77257-11-5
(R)-2-Hydroxy-2-methyl-4-(2,4,5-trimethyl-3,6-dioxo-cyclohexa-1,4-dienyl)-butyric acid

: 70874-20-3
methyl (R)-(-)-2-hydroxy-2-methyl-4-(3,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)butanoate

Guidance literature:: Multi-step reaction with 4 steps

1: 100 percent / H₂ / 5percent Pd/C / ethyl acetate

2: concd. HCl / 2 h / 90 °C

3: 94.7 percent / p-toluenesulfonic acid monohydrate / 3.75 h / Heating

4: 85 percent / ferric chloride / diethyl ether; methanol; H₂O / 0.5 h

With hydrogenchloride; hydrogen; iron(III) chloride; toluene-4-sulfonic acid; palladium on activated charcoal; In methanol; diethyl ether; water; ethyl acetate;
DOI:10.1021/jo00325a004