2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one

Base Information

Chemical Name:2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one
CAS No.:1381807-36-8
Molecular Formula:C₂₅H₂₀BrNO₄S
Molecular Weight:510.408
Hs Code.:

Synonyms:2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one

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Chemical Property of 2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one

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Technology Process of 2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one

There total 5 articles about 2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-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: 65.0%

: 2-(3-(4-bromophenyl)-3-(tosylimino)prop-1-en-1-yl)phenyl acrylate

: 1381807-36-8
2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one

Guidance literature:: With (S)-N-(1-(diphenylphosphanyl)-3-methylbutan-2-yl)-4-methylbenzenesulfonamide; In toluene; at 20 ℃; for 24h; optical yield given as %ee; enantioselective reaction; Inert atmosphere;
DOI:10.1021/ol3013588

Reference yield:

: C₁₈H₁₃BrO₃

: 1381807-36-8
2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one

Guidance literature:: Multi-step reaction with 2 steps

1: titanium tetrachloride; triethylamine / dichloromethane / 24 h / Cooling with ice; Reflux

2: (S)-N-(1-(diphenylphosphanyl)-3-methylbutan-2-yl)-4-methylbenzenesulfonamide / toluene / 24 h / 20 °C / Inert atmosphere

With titanium tetrachloride; triethylamine; (S)-N-(1-(diphenylphosphanyl)-3-methylbutan-2-yl)-4-methylbenzenesulfonamide; In dichloromethane; toluene;
DOI:10.1021/ol3013588

Reference yield:

: 132971-94-9,86293-49-4
1-(4-bromophenyl)-3-(2-hydroxyphenyl)prop-2-en-1-one

: 1381807-36-8
2-(4-bromophenyl)-3-tosyl-4,4a-dihydro-3H-chromeno[3,4-c]pyridin-5(10bH)-one

Guidance literature:: Multi-step reaction with 3 steps

1: dmap; dicyclohexyl-carbodiimide / toluene / 12 h / 20 °C

2: titanium tetrachloride; triethylamine / dichloromethane / 24 h / Cooling with ice; Reflux

3: (S)-N-(1-(diphenylphosphanyl)-3-methylbutan-2-yl)-4-methylbenzenesulfonamide / toluene / 24 h / 20 °C / Inert atmosphere

With dmap; titanium tetrachloride; triethylamine; dicyclohexyl-carbodiimide; (S)-N-(1-(diphenylphosphanyl)-3-methylbutan-2-yl)-4-methylbenzenesulfonamide; In dichloromethane; toluene;
DOI:10.1021/ol3013588