3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester

Base Information

Chemical Name:3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester
CAS No.:524774-19-4
Molecular Formula:C₃₄H₃₇F₁₀NO₆Si
Molecular Weight:773.74
Hs Code.:

3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester

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Chemical Property of 3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester

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Technology Process of 3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester

There total 7 articles about 3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester 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:

: 54401-85-3
pyridin-4-yl-acetic acid ethyl ester

: 524773-95-3
[2-(1-{4-[(3,4-bis-difluoromethoxy-phenyl)-chloro-methyl]-3-methyl-phenyl}-2,2,2-trifluoro-1-trifluoromethyl-ethoxymethoxy)-ethyl]-trimethyl-silane

: 524774-19-4
3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester

Guidance literature:: pyridin-4-yl-acetic acid ethyl ester; With N,N,N,N,N,N-hexamethylphosphoric triamide; potassium hexamethylsilazane; In tetrahydrofuran; at 20 ℃; for 3h;

[2-(1-{4-[(3,4-bis-difluoromethoxy-phenyl)-chloro-methyl]-3-methyl-phenyl}-2,2,2-trifluoro-1-trifluoromethyl-ethoxymethoxy)-ethyl]-trimethyl-silane; With N,N,N,N,N,N-hexamethylphosphoric triamide; In tetrahydrofuran; at 20 ℃; for 3h;
DOI:10.1016/S0960-894X(02)00615-7

Reference yield:

: 615-59-8
1,4-dibromo-2-methylbenzene

: 524774-19-4
3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1.1: BuLi / diethyl ether / 0.5 h / -78 °C

1.2: tetrahydrofuran / 2 h / -50 °C

2.1: 95 percent / iPr₂NEt / CH₂Cl₂ / 18 h / 20 °C

3.1: Mg / tetrahydrofuran / 1.5 h / Heating

3.2: tetrahydrofuran / 1.5 h / -78 °C

4.1: SOCl₂; pyridine / toluene / 0.5 h / 20 °C

5.1: KHMDS; HMPA / tetrahydrofuran / 3 h / 20 °C

5.2: HMPA / tetrahydrofuran / 3 h / 20 °C

With pyridine; N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium; thionyl chloride; potassium hexamethylsilazane; magnesium; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; diethyl ether; dichloromethane; toluene; 3.2: Grignard reaction;
DOI:10.1016/S0960-894X(02)00615-7

Reference yield:

: 76513-69-4
(2-trimethylethylsilylethoxy)methyl chloride

: 524774-19-4
3-(3,4-bis-difluoromethoxy-phenyl)-3-{2-methyl-4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-2-pyridin-4-yl-propionic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1.1: 95 percent / iPr₂NEt / CH₂Cl₂ / 18 h / 20 °C

2.1: Mg / tetrahydrofuran / 1.5 h / Heating

2.2: tetrahydrofuran / 1.5 h / -78 °C

3.1: SOCl₂; pyridine / toluene / 0.5 h / 20 °C

4.1: KHMDS; HMPA / tetrahydrofuran / 3 h / 20 °C

4.2: HMPA / tetrahydrofuran / 3 h / 20 °C

With pyridine; N,N,N,N,N,N-hexamethylphosphoric triamide; thionyl chloride; potassium hexamethylsilazane; magnesium; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane; toluene; 2.2: Grignard reaction;
DOI:10.1016/S0960-894X(02)00615-7