2H-Pyran-3(4H)-one, 2-[1,1-dimethyl-2-(phenylsulfonyl)ethyl]dihydro-2-methoxy-6-[[(4R,5R)-2, 2,5-trimethyl-1,3-dioxolan-4-yl]methyl]-, (2S,6S)-

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Chemical Name:2H-Pyran-3(4H)-one, 2-[1,1-dimethyl-2-(phenylsulfonyl)ethyl]dihydro-2-methoxy-6-[[(4R,5R)-2, 2,5-trimethyl-1,3-dioxolan-4-yl]methyl]-, (2S,6S)-
CAS No.:501677-44-7
Molecular Formula:C23H34O7S
Molecular Weight:454.585
Hs Code.:

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Chemical Property of 2H-Pyran-3(4H)-one, 2-[1,1-dimethyl-2-(phenylsulfonyl)ethyl]dihydro-2-methoxy-6-[[(4R,5R)-2, 2,5-trimethyl-1,3-dioxolan-4-yl]methyl]-, (2S,6S)-

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Technology Process of 2H-Pyran-3(4H)-one, 2-[1,1-dimethyl-2-(phenylsulfonyl)ethyl]dihydro-2-methoxy-6-[[(4R,5R)-2, 2,5-trimethyl-1,3-dioxolan-4-yl]methyl]-, (2S,6S)-

There total 4 articles about 2H-Pyran-3(4H)-one, 2-[1,1-dimethyl-2-(phenylsulfonyl)ethyl]dihydro-2-methoxy-6-[[(4R,5R)-2, 2,5-trimethyl-1,3-dioxolan-4-yl]methyl]-, (2S,6S)- 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:

: 501677-43-6
(2S,6S)-2-(2-Benzenesulfonyl-1,1-dimethyl-ethyl)-2-methoxy-6-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-ylmethyl)-tetrahydro-pyran-3-ol

: 501677-44-7
(2S,6S)-2-(2-Benzenesulfonyl-1,1-dimethyl-ethyl)-2-methoxy-6-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-ylmethyl)-dihydro-pyran-3-one

Guidance literature:: With dipyridinium dichromate; In N,N-dimethyl-formamide; at 20 ℃; for 20h;
DOI:10.1021/ol027393m

Reference yield:

: 380579-24-8
6-(2-benzenesulfonyl-1,1-dimethyl-ethyl)-2-[2,3-bis-(tert-butyl-dimethyl-silanyloxy)-butyl]-3,4-dihydro-2H-pyran

: 501677-44-7
(2S,6S)-2-(2-Benzenesulfonyl-1,1-dimethyl-ethyl)-2-methoxy-6-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-ylmethyl)-dihydro-pyran-3-one

Guidance literature:: Multi-step reaction with 4 steps

1.1: 95 percent / n-Bu₄NF / tetrahydrofuran / 12 h / 20 °C

2.1: 97 percent / PPTS / acetone / 0.25 h / 40 °C

3.1: DMDO; Me₂C(OMe)2 / acetone; methanol / 0.25 h / 0 °C

3.2: PPTS; Me₂C(OMe)2 / acetone / 0.17 h / 20 °C

4.1: PDC / dimethylformamide / 20 h / 20 °C

With dipyridinium dichromate; tetrabutyl ammonium fluoride; pyridinium p-toluenesulfonate; 2,2-dimethoxy-propane; In tetrahydrofuran; methanol; N,N-dimethyl-formamide; acetone;
DOI:10.1021/ol027393m

Reference yield:

: 501677-41-4
(2R,3R)-1-[(S)-6-(2-Benzenesulfonyl-1,1-dimethyl-ethyl)-3,4-dihydro-2H-pyran-2-yl]-butane-2,3-diol

: 501677-44-7
(2S,6S)-2-(2-Benzenesulfonyl-1,1-dimethyl-ethyl)-2-methoxy-6-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-ylmethyl)-dihydro-pyran-3-one

Guidance literature:: Multi-step reaction with 3 steps

1.1: 97 percent / PPTS / acetone / 0.25 h / 40 °C

2.1: DMDO; Me₂C(OMe)2 / acetone; methanol / 0.25 h / 0 °C

2.2: PPTS; Me₂C(OMe)2 / acetone / 0.17 h / 20 °C

3.1: PDC / dimethylformamide / 20 h / 20 °C

With dipyridinium dichromate; pyridinium p-toluenesulfonate; 2,2-dimethoxy-propane; In methanol; N,N-dimethyl-formamide; acetone;
DOI:10.1021/ol027393m