(11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one

Base Information

• Chemical Name: (11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one
• CAS No.: 866004-34-4
• Molecular Formula: C₂₉H₃₃BrO₂
• Molecular Weight: 493.484
• Mol file: 866004-34-4.mol

Synonyms:(11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one

Chemical Property of (11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one

There total 1 articles about (11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-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: 66.0%

(5α,11β,16α,17β)-11-(4-bromophenyl)-17-(cyclopropylcarbonyl)-5-hydroxy-16-methylestr-9-en-3-one cyclic 1,2-ethanediyl acetal (866004-33-3) → (11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one (866004-34-4)

Guidance literature:

With water; hydrogenchloride; In acetone; at 20 ℃; for 0.166667h;

Reference yield: 79.0%

1,2-diazine (289-80-5) + (11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one (866004-34-4) → (11β,16α,17β)-17-cyclopropylcarbonyl-16-methyl-11-[4-(4-pyridazinyl)phenyl]estra-4,9-dien-3-one

Guidance literature:

1,2-diazine; With n-butyllithium; tributyltin chloride; diisopropylamine; In tetrahydrofuran; hexane; at -78 - 0 ℃; for 2.5h;

(11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one; bis-triphenylphosphine-palladium(II) chloride; In 1,4-dioxane; at 110 ℃;

With water; In 1,4-dioxane; at 20 ℃; Product distribution / selectivity;

Reference yield: 79.0%

1,2-diazine (289-80-5) + (11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one (866004-34-4) → (11β,16α,17β)-17-cyclopropylcarbonyl-16-methyl-11-[4-(4-pyridazinyl)phenyl]estra-4,9-dien-3-one (1029101-04-9)

Guidance literature:

1,2-diazine; With n-butyllithium; tributyltin chloride; diisopropylamine; In tetrahydrofuran; hexane; at -78 ℃; for 2h;

(11β,16α,17β)-11-(4-bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one; bis(triphenylphosphine)palladium(II)-chloride; In 1,4-dioxane; at 110 ℃; Further stages.;

DOI:10.1016/j.bmc.2008.01.010

upstream raw materials:

(5α,11β,16α,17β)-11-(4-bromophenyl)-17-(cyclopropylcarbonyl)-5-hydroxy-16-methylestr-9-en-3-one cyclic 1,2-ethanediyl acetal

Downstream raw materials:

(11β,16α,17β)-17-cyclopropylcarbonyl-16-methyl-11-[4-(3-pyridinyl)phenyl]estra-4,9-dien-3-one

(11β,16α,17β)-17-cyclopropylcarbonyl-16-methyl-11-[4-(4-pyridazinyl)phenyl]estra-4,9-dien-3-one