Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester

Base Information

Chemical Name:Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester
CAS No.:335197-24-5
Molecular Formula:C₂₅H₃₂O₇S
Molecular Weight:476.591
Hs Code.:

Synonyms:Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester

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Chemical Property of Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester

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Technology Process of Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester

There total 7 articles about Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl 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: 87.0%

: 335197-23-4
(2S,3aR,6R,7S,7aR)-2-Ethylsulfanyl-6,7-bis-(4-methoxy-benzyloxy)-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran

: 335197-24-5
Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester

Guidance literature:: With zinc(II) chloride; In dichloromethane; at -60 - 0 ℃;
DOI:10.1016/j.tet.2016.05.049

Reference yield:

: 62446-93-9
1,2,3,4-tetra-O-acetyl-D-xylopyranose

: 335197-24-5
Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester

Guidance literature:: Multi-step reaction with 5 steps

1.1: 93 percent / HBr; AcOH / CH₂Cl₂ / 4 h / 0 - 25 °C

2.1: 82 percent / 2,6-lutidine / nitromethane / 12 h / 25 °C

3.1: NaOMe / methanol / 3 h / 25 °C

4.1: NaH / tetrahydrofuran / 0 °C

4.2: 5.14 g / tetrabutylammonium chloride / tetrahydrofuran / 4 h / Heating

5.1: ZnCl₂ / CH₂Cl₂ / -60 - 0 °C

With 2,6-dimethylpyridine; hydrogen bromide; sodium methylate; sodium hydride; acetic acid; zinc(II) chloride; In tetrahydrofuran; methanol; nitromethane; dichloromethane;
DOI:10.1021/ja012119t

Reference yield:

: 335197-22-3
(S)-1,2-O-(1-ethylthioethylidene)-α-D-xylopyranose

: 335197-24-5
Acetic acid (2S,3R,4S,5R)-2-ethylsulfanyl-4,5-bis-(4-methoxy-benzyloxy)-tetrahydro-pyran-3-yl ester

Guidance literature:: Multi-step reaction with 2 steps

1.1: NaH / tetrahydrofuran / 0 °C

1.2: 5.14 g / tetrabutylammonium chloride / tetrahydrofuran / 4 h / Heating

2.1: ZnCl₂ / CH₂Cl₂ / -60 - 0 °C

With sodium hydride; zinc(II) chloride; In tetrahydrofuran; dichloromethane;
DOI:10.1021/ja012119t