3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid

Base Information

Chemical Name:3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid
CAS No.:156005-28-6
Molecular Formula:C₂₉H₃₇NO₇
Molecular Weight:511.615
Hs Code.:

Synonyms:3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid

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Chemical Property of 3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid

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Technology Process of 3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid

There total 5 articles about 3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid 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: 94.0%

: 156005-67-3
7-{3-[4-((Z)-3-Dimethylamino-acryloyl)-2-ethyl-5-hydroxy-phenoxy]-propoxy}-8-propyl-chroman-2-carboxylic acid ethyl ester

: 156005-28-6
3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid

Guidance literature:: With sodium hydroxide; In ethanol; for 3h; Ambient temperature;
DOI:10.1021/jm00041a021

Reference yield:

: 42368-92-3
7-hydroxy-4-oxo-8-propyl-4H-1-benzopyran-2-carboxylic acid ethyl ester

: 156005-28-6
3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid

Guidance literature:: Multi-step reaction with 5 steps

1: 86 percent / H₂, AcOH / 10percent Pd/C / 23 h / 2689.2 Torr

2: 72 percent / K₂CO₃ / dimethylformamide / 20 h / Ambient temperature

3: 73 percent / K₂CO₃, KI / butan-2-one; dimethylsulfoxide / 20 h / Heating

4: 74 percent / 1.5 h / 155 °C

5: 94 percent / 2 N aq.NaOH / ethanol / 3 h / Ambient temperature

With sodium hydroxide; hydrogen; potassium carbonate; acetic acid; potassium iodide; palladium on activated charcoal; In ethanol; dimethyl sulfoxide; N,N-dimethyl-formamide; butanone;
DOI:10.1021/jm00041a021

Reference yield:

: 147611-86-7
rac-3,4-dihydro-7-hydroxy-8-propyl-2H-1-benzopyran-2-carboxylic acid ethyl ester

: 156005-28-6
3,4-dihydro-8-propyl-7-<<3-<2-ethyl-5-hydroxy-4-<3-(dimethylamino)-1-oxo-2-propenyl>phenoxy>propyl>oxy>-2H-1-benzopyran-2-carboxylic acid

Guidance literature:: Multi-step reaction with 4 steps

1: 72 percent / K₂CO₃ / dimethylformamide / 20 h / Ambient temperature

2: 73 percent / K₂CO₃, KI / butan-2-one; dimethylsulfoxide / 20 h / Heating

3: 74 percent / 1.5 h / 155 °C

4: 94 percent / 2 N aq.NaOH / ethanol / 3 h / Ambient temperature

With sodium hydroxide; potassium carbonate; potassium iodide; In ethanol; dimethyl sulfoxide; N,N-dimethyl-formamide; butanone;
DOI:10.1021/jm00041a021