ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate

Base Information

Chemical Name:ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate
CAS No.:204650-34-0
Molecular Formula:C₂₀H₂₉NO₄
Molecular Weight:347.455
Hs Code.:

Synonyms:ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate

Chemical Property:

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Technology Process of ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate

There total 6 articles about ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate 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: 85.0%

: ethyl dimethylphosphonoacetate

: 204650-33-9
3-(4-ethyl-3,5-dimethoxy-phenyl)-1-methyl-piperidin-4-one

: 204650-34-0
ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate

Guidance literature:: With sodium hydride; In tetrahydrofuran; at 50 ℃; for 1h;
DOI:10.1002/hlca.19980810306

Reference yield:

: 78025-99-7
3,5-dimethoxy-4-ethylbenzaldehyde

: 204650-34-0
ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate

Guidance literature:: Multi-step reaction with 6 steps

1: 69 percent / Triton B / tetrahydrofuran; methanol / 5 h / Heating

2: 94 percent / HCl / 4 h / 50 °C

3: 67 percent / K₂CO₃, Bu₄NI / toluene / 6 h / 80 °C

4: 59 percent / 48 h / Ambient temperature

5: 1.) NaH; 2.) 6N HCl / 1.) toluene, 15 h, 120 deg C; 2.) reflux, 20 h

6: 85 percent / NaH / tetrahydrofuran / 1 h / 50 °C

With hydrogenchloride; tetra-(n-butyl)ammonium iodide; N-benzyl-trimethylammonium hydroxide; sodium hydride; potassium carbonate; In tetrahydrofuran; methanol; toluene;
DOI:10.1002/hlca.19980810306

Reference yield:

: 204650-30-6
methyl 2-(4-ethyl-3,5-dimethoxyphenyl)acetate

: 204650-34-0
ethyl (RS,E)-[3-(4-ethyl-3,5-dimethoxyphenyl)-1-methylpiperidin-4-ylidene]acetate

Guidance literature:: Multi-step reaction with 4 steps

1: 67 percent / K₂CO₃, Bu₄NI / toluene / 6 h / 80 °C

2: 59 percent / 48 h / Ambient temperature

3: 1.) NaH; 2.) 6N HCl / 1.) toluene, 15 h, 120 deg C; 2.) reflux, 20 h

4: 85 percent / NaH / tetrahydrofuran / 1 h / 50 °C

With hydrogenchloride; tetra-(n-butyl)ammonium iodide; sodium hydride; potassium carbonate; In tetrahydrofuran; toluene;
DOI:10.1002/hlca.19980810306