3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one

Base Information

Chemical Name:3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one
CAS No.:1401353-75-0
Molecular Formula:C₂₂H₁₇BrO₅
Molecular Weight:441.278
Hs Code.:

Synonyms:3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one

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Chemical Property of 3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one

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Technology Process of 3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one

There total 3 articles about 3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-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: 91.0%

: 14369-81-4
ethyl 2,3-butadienoate

: 2199-85-1
3-benzoyl-6-bromo-2H-chromen-2-one

: 1401353-75-0
3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one

Guidance literature:: With tributylphosphine; In dichloromethane; at 20 ℃; for 4h; regioselective reaction; Inert atmosphere; Schlenk technique;
DOI:10.1039/c2ob26300a

Reference yield:

: 94-02-0
ethyl 3-oxo-3-phenylpropionate

: 1401353-75-0
3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one

Guidance literature:: Multi-step reaction with 2 steps

1: piperidine; acetic acid / acetonitrile / Reflux; Inert atmosphere

2: tributylphosphine / dichloromethane / 4 h / 20 °C / Inert atmosphere; Schlenk technique

With piperidine; tributylphosphine; acetic acid; In dichloromethane; acetonitrile;
DOI:10.1039/c2ob26300a

Reference yield:

: 1761-61-1
5-bromosalicyclaldehyde

: 1401353-75-0
3a-benzoyl-8-bromo-1-(ethoxycarbonyl)-3a,9b-dihydro-3H-cyclopenta[c]chromen-4-one

Guidance literature:: Multi-step reaction with 2 steps

1: piperidine; acetic acid / acetonitrile / Reflux; Inert atmosphere

2: tributylphosphine / dichloromethane / 4 h / 20 °C / Inert atmosphere; Schlenk technique

With piperidine; tributylphosphine; acetic acid; In dichloromethane; acetonitrile;
DOI:10.1039/c2ob26300a