methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Base Information

Chemical Name:methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate
CAS No.:1351278-86-8
Molecular Formula:C₃₈H₅₅ClO₃
Molecular Weight:595.306
Hs Code.:

methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Synonyms:methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

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Chemical Property of methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Chemical Property:

Purity/Quality:

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Technology Process of methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

There total 6 articles about methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate 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:

: 1351278-85-7
(1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-1-isopropyl-9-(4-(methoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysene-3a-carboxylic acid

: 1351278-86-8
methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: With thionyl chloride; In dichloromethane; at 20 ℃; for 3h;

Reference yield:

: 192211-42-0
benzyl (1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-hydroxy-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-3aH-cyclopenta[a]chrysene-3a-carboxylate

: 1351278-86-8
methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: Multi-step reaction with 5 steps

1: pyridinium chlorochromate / dichloromethane / 5.5 h

2: potassium hexamethylsilazane / tetrahydrofuran / 1 h / -78 °C

3: sodium carbonate monohydrate / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / isopropyl alcohol; 1,4-dioxane; water / Inert atmosphere; Reflux

4: hydrogen; acetic acid / palladium 10% on activated carbon / 1,4-dioxane; ethanol / 1551.49 - 2068.65 Torr / Inert atmosphere

5: thionyl chloride / dichloromethane / 3 h / 20 °C

With thionyl chloride; sodium carbonate monohydrate; hydrogen; potassium hexamethylsilazane; acetic acid; pyridinium chlorochromate; tetrakis(triphenylphosphine) palladium⁽⁰⁾; palladium 10% on activated carbon; In tetrahydrofuran; 1,4-dioxane; ethanol; dichloromethane; water; isopropyl alcohol;

Reference yield:

Betulinic acid: 472-15-1
Betulinic acid

: 1351278-86-8
methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(chlorocarbonyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: Multi-step reaction with 6 steps

1: potassium carbonate / N,N-dimethyl-formamide / 3.5 h / 60 °C

2: pyridinium chlorochromate / dichloromethane / 5.5 h

3: potassium hexamethylsilazane / tetrahydrofuran / 1 h / -78 °C

4: sodium carbonate monohydrate / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / isopropyl alcohol; 1,4-dioxane; water / Inert atmosphere; Reflux

5: hydrogen; acetic acid / palladium 10% on activated carbon / 1,4-dioxane; ethanol / 1551.49 - 2068.65 Torr / Inert atmosphere

6: thionyl chloride / dichloromethane / 3 h / 20 °C

With thionyl chloride; sodium carbonate monohydrate; hydrogen; potassium hexamethylsilazane; potassium carbonate; acetic acid; pyridinium chlorochromate; tetrakis(triphenylphosphine) palladium⁽⁰⁾; palladium 10% on activated carbon; In tetrahydrofuran; 1,4-dioxane; ethanol; dichloromethane; water; N,N-dimethyl-formamide; isopropyl alcohol;