Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

Base Information

Chemical Name:Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester
CAS No.:831235-45-1
Molecular Formula:C₃₆H₅₂O₅SSi
Molecular Weight:624.957
Hs Code.:

Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

Synonyms:Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

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Chemical Property of Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

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Technology Process of Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

There total 4 articles about Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl 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: 91.0%

: 831235-44-0
Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-5-((S)-2-hydroxy-1-methyl-ethyl)-3-methyl-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

: 831235-45-1
Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

Guidance literature:: With oxalyl dichloride; dimethyl sulfoxide; triethylamine; In dichloromethane; at -78 ℃; for 3h;
DOI:10.1021/jo048456c

Reference yield:

: 831235-42-8
(R)-2-{(1R,4aS,5R,7S,8aR)-7-(tert-Butyl-diphenyl-silanyloxy)-5-[(S)-2-(4-methoxy-benzyloxy)-1-methyl-ethyl]-3-methyl-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl}-3-methyl-butan-1-ol

: 831235-45-1
Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 98 percent / Et₃N; DMAP / CH₂Cl₂ / 3 h / 0 °C

2: 95 percent / DDQ; H₂O / CH₂Cl₂ / 0.5 h / 20 °C

3: 91 percent / (COCl)2; DMSO; Et₃N / CH₂Cl₂ / 3 h / -78 °C

With dmap; oxalyl dichloride; water; dimethyl sulfoxide; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In dichloromethane; 3: Swern oxidation;
DOI:10.1021/jo048456c

Reference yield:

: (1R,3S,4aR,5R,8aS)-5-[(R)-1-(tert-Butyl-dimethyl-silanyloxymethyl)-2-methyl-propyl]-3-(tert-butyl-diphenyl-silanyloxy)-1-[(S)-2-(4-methoxy-benzyloxy)-1-methyl-ethyl]-7-methyl-1,2,3,4,4a,5,6,8a-octahydro-naphthalene

: 831235-45-1
Methanesulfonic acid (R)-2-[(1R,4aS,5R,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-5-((S)-1-methyl-2-oxo-ethyl)-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl]-3-methyl-butyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 100 percent / TsOH / tetrahydrofuran; methanol / 3 h / 20 °C

2: 98 percent / Et₃N; DMAP / CH₂Cl₂ / 3 h / 0 °C

3: 95 percent / DDQ; H₂O / CH₂Cl₂ / 0.5 h / 20 °C

4: 91 percent / (COCl)2; DMSO; Et₃N / CH₂Cl₂ / 3 h / -78 °C

With dmap; oxalyl dichloride; water; toluene-4-sulfonic acid; dimethyl sulfoxide; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In tetrahydrofuran; methanol; dichloromethane; 4: Swern oxidation;
DOI:10.1021/jo048456c