ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate

Base Information

Chemical Name:ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate
CAS No.:724767-20-8
Molecular Formula:C₂₁H₂₂O₂
Molecular Weight:306.404
Hs Code.:

Synonyms:ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate

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Chemical Property of ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate

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Technology Process of ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate

There total 1 articles about ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate 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: 70.0%

: 64-17-5
ethanol

: 201230-82-2
carbon monoxide

: 724767-19-5
2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulen-8-yl trifluoromethanesulfonate

: 724767-20-8
ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate

Guidance literature:: With bis-triphenylphosphine-palladium(II) chloride; triethylamine; at 90 ℃; for 1.5h; under 760 Torr;
DOI:10.1081/SCC-120037909

Reference yield: 63.0%

: 724767-20-8
ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate

: 229006-88-6
2-(4-methylphenyl)-6,7-dihydro-5H-benzocycloheptene-8-carboxylic acid

Guidance literature:: With lithium hydroxide; water; In tetrahydrofuran; ethanol; at 50 ℃; for 24h;
DOI:10.1081/SCC-120037909

Reference yield:

: 724767-20-8
ethyl 2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulene-8-carboxylate

: N,N-dimethyl-N-[4-({[2-(4-methylphenyl)-6,7-dihydro-5H-benzo[a][7]annulen-8-yl]carbonyl}amino)benzyl]tetrahydro-2H-pyran-4-aminium iodide

Guidance literature:: Multi-step reaction with 3 steps

1.1: 63 percent / LiOH; H₂O / ethanol; tetrahydrofuran / 24 h / 50 °C

2.1: HOBt; EDC*HCl / CH₂Cl₂ / 0.67 h

2.2: 50 percent / (i-Pr)2NEt / CH₂Cl₂ / 2 h / 20 °C

3.1: dimethylformamide / 20 °C

With lithium hydroxide; water; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1081/SCC-120037909