(E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester

Base Information

Chemical Name:(E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester
CAS No.:203782-84-7
Molecular Formula:C₂₆H₃₆O₆SSi
Molecular Weight:504.72
Hs Code.:

Synonyms:(E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester

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Chemical Property of (E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester

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Technology Process of (E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester

There total 7 articles about (E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl 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: 86.0%

: 124-63-0
methanesulfonyl chloride

: 203782-83-6
(E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-hydroxy-2,5-dimethyl-hex-2-enoic acid methyl ester

: 203782-84-7
(E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester

Guidance literature:: With pyridine; dmap; In dichloromethane; at 0 ℃; for 24h;
DOI:10.1021/jo9721397

Reference yield:

: 127665-68-3
(4S)-5-(tert-butyldiphenylsilyloxy)-4-methyl-2-penten-1-ol

: 203782-84-7
(E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester

Guidance literature:: Multi-step reaction with 7 steps

1: 83 percent / diisopropyl D-tartrate, t-BuOOH / CH₂Cl₂; 2,2,4-trimethyl-pentane / 26 h / -20 °C

2: 74 percent / pyridine, 4-(dimethylamino)pyridine / CH₂Cl₂ / 40 h / Ambient temperature

3: 1.) KI, 2.) Zn, NH₄Cl / 1.) DMF, 55 deg C, 1.5 h, 2.) DMF, 0 deg C, 30 min,

4: 99 percent / pyridine, 4-(dimethylamino)pyridine / CH₂Cl₂ / 2 h / Ambient temperature

6: 83 percent / Na₂CO₃ / methanol / 8 h / Ambient temperature

7: 86 percent / pyridine, 4-(dimethylamino)pyridine / CH₂Cl₂ / 24 h / 0 °C

With pyridine; tert.-butylhydroperoxide; dmap; sodium carbonate; D-(-)-diisopropyl tartrate; ammonium chloride; potassium iodide; zinc; In methanol; 2,2,4-trimethylpentane; dichloromethane;
DOI:10.1021/jo9721397

Reference yield:

: 127665-69-4
((2R,3R)-3-((R)-1-((tert-butyldiphenylsilyl)oxy)propan-2-yl)oxiran-2-yl)methanol

: 203782-84-7
(E)-(4S,5R)-6-(tert-Butyl-diphenyl-silanyloxy)-4-methanesulfonyloxy-2,5-dimethyl-hex-2-enoic acid methyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: 74 percent / pyridine, 4-(dimethylamino)pyridine / CH₂Cl₂ / 40 h / Ambient temperature

2: 1.) KI, 2.) Zn, NH₄Cl / 1.) DMF, 55 deg C, 1.5 h, 2.) DMF, 0 deg C, 30 min,

3: 99 percent / pyridine, 4-(dimethylamino)pyridine / CH₂Cl₂ / 2 h / Ambient temperature

5: 83 percent / Na₂CO₃ / methanol / 8 h / Ambient temperature

6: 86 percent / pyridine, 4-(dimethylamino)pyridine / CH₂Cl₂ / 24 h / 0 °C

With pyridine; dmap; sodium carbonate; ammonium chloride; potassium iodide; zinc; In methanol; dichloromethane;
DOI:10.1021/jo9721397