(-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate

Base Information

Chemical Name:(-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate
CAS No.:163213-85-2
Molecular Formula:C₂₀H₃₂O₇S
Molecular Weight:416.536
Hs Code.:

Synonyms:(-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate

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Chemical Property of (-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate

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Technology Process of (-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate

There total 9 articles about (-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate 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: 91.0%

: 163213-84-1
(-)-<3(S),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-oxo-5-(p-tolylsulfinyl)pentanoate

: 163213-85-2
(-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate

Guidance literature:: With diisobutylaluminium hydride; In tetrahydrofuran; toluene; at -78 ℃; for 0.166667h;
DOI:10.1016/0957-4166(94)80083-9

Reference yield:

: 142176-64-5
(+)(R) tert-butyl 3-oxo-4-(p-tolylsulfinyl)butyrate

: 163213-85-2
(-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate

Guidance literature:: Multi-step reaction with 9 steps

1: 78 percent / DIBAL / tetrahydrofuran; toluene / 0.5 h / -78 °C

2: diisopropylethyl amine / CH₂Cl₂ / 48 h / Ambient temperature

3: AcONa / 8 h / Heating

4: 91 percent / Raney Ni / ethanol / Ambient temperature

5: 92 percent / DIBAL / tetrahydrofuran; toluene / 0.75 h / -78 - 0 °C

6: pyridinium dichromate / dimethylformamide / 15 h / Ambient temperature

7: diethyl ether / 0 °C

8: 1.) LDA / 1.) THF, -78 deg C, 1 h, 2.) THF, -78 deg C, 15 min

9: 91 percent / DIBAL / tetrahydrofuran; toluene / 0.17 h / -78 °C

With dipyridinium dichromate; sodium acetate; nickel; diisobutylaluminium hydride; N-ethyl-N,N-diisopropylamine; lithium diisopropyl amide; In tetrahydrofuran; diethyl ether; ethanol; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1016/0957-4166(94)80083-9

Reference yield:

: 142176-68-9
(+)<3(S),S(R)> tert-butyl 3-hydroxy-4-(p-tolylsulfinyl)butyrate

: 163213-85-2
(-)-<3(S),4(R),S(S)>-tert-butyl 3-(2-methoxyethoxymethoxy)-4-hydroxy-5-(p-tolylsulfinyl)pentanoate

Guidance literature:: Multi-step reaction with 8 steps

1: diisopropylethyl amine / CH₂Cl₂ / 48 h / Ambient temperature

2: AcONa / 8 h / Heating

3: 91 percent / Raney Ni / ethanol / Ambient temperature

4: 92 percent / DIBAL / tetrahydrofuran; toluene / 0.75 h / -78 - 0 °C

5: pyridinium dichromate / dimethylformamide / 15 h / Ambient temperature

6: diethyl ether / 0 °C

7: 1.) LDA / 1.) THF, -78 deg C, 1 h, 2.) THF, -78 deg C, 15 min

8: 91 percent / DIBAL / tetrahydrofuran; toluene / 0.17 h / -78 °C

With dipyridinium dichromate; sodium acetate; nickel; diisobutylaluminium hydride; N-ethyl-N,N-diisopropylamine; lithium diisopropyl amide; In tetrahydrofuran; diethyl ether; ethanol; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1016/0957-4166(94)80083-9