Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester

Base Information

• Chemical Name: Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester
• CAS No.: 174198-56-2
• Molecular Formula: C₂₁H₃₀O₆
• Molecular Weight: 378.466
• Mol file: 174198-56-2.mol

Synonyms:Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester

Chemical Property of Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester

There total 6 articles about Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl 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: 92.0%

benzoic acid (65-85-0,8013-63-6) + {(2R,3R)-3-[(E)-3-Methyl-5-(tetrahydro-pyran-2-yloxy)-pent-3-enyl]-oxiranyl}-methanol (174198-55-1) → Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester (174198-56-2)

Guidance literature:

With titanium(IV) isopropylate; In dichloromethane; 0 deg C to RT;

DOI:10.1016/0040-4039(95)02132-9

Reference yield:

(E)-6-acetoxy-4-methyl-4-hexenal (35334-60-2) → Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester (174198-56-2)

Guidance literature:

Multi-step reaction with 6 steps

1: 69 percent / benzene / Heating

2: 84 percent / K₂CO₃ / methanol / 0 deg C to RT

3: 92 percent / TsOH / diethyl ether / 0 deg C to RT

4: 83 percent / DIBAH / toluene / -65 °C

5: 98 percent / t-BuOOH, D-(-)-DIPT, Ti(O-iPr)4, 4 Angstroem molecular sieves / CH₂Cl₂ / -23 °C

6: 92 percent / Ti(O-iPr)4 / CH₂Cl₂ / 0 deg C to RT

With titanium(IV) isopropylate; tert.-butylhydroperoxide; 4 A molecular sieve; diisobutylaluminium hydride; potassium carbonate; D-(-)-diisopropyl tartrate; toluene-4-sulfonic acid; In methanol; diethyl ether; dichloromethane; toluene; benzene;

DOI:10.1016/0040-4039(95)02132-9

Reference yield:

(2E,6E)-8-Hydroxy-6-methyl-octa-2,6-dienoic acid methyl ester (110965-85-0) → Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-4-methyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl ester (174198-56-2)

Guidance literature:

Multi-step reaction with 4 steps

1: 92 percent / TsOH / diethyl ether / 0 deg C to RT

2: 83 percent / DIBAH / toluene / -65 °C

3: 98 percent / t-BuOOH, D-(-)-DIPT, Ti(O-iPr)4, 4 Angstroem molecular sieves / CH₂Cl₂ / -23 °C

4: 92 percent / Ti(O-iPr)4 / CH₂Cl₂ / 0 deg C to RT

With titanium(IV) isopropylate; tert.-butylhydroperoxide; 4 A molecular sieve; diisobutylaluminium hydride; D-(-)-diisopropyl tartrate; toluene-4-sulfonic acid; In diethyl ether; dichloromethane; toluene;

DOI:10.1016/0040-4039(95)02132-9

upstream raw materials:

benzoic acid

{(2R,3R)-3-[(E)-3-Methyl-5-(tetrahydro-pyran-2-yloxy)-pent-3-enyl]-oxiranyl}-methanol

(E)-6-acetoxy-4-methyl-4-hexenal

(2E,6E)-8-Hydroxy-6-methyl-octa-2,6-dienoic acid methyl ester

Downstream raw materials:

Benzoic acid (E)-(S)-1-((R)-1,2-dihydroxy-ethyl)-6-hydroxy-4-methyl-hex-4-enyl ester

(R)-1-((2S,5S,6R)-5-Benzyloxy-6-but-3-enyl-2-methyl-tetrahydro-pyran-2-yl)-ethane-1,2-diol

Benzoic acid (2R,3S,6S)-6-((R)-1,2-dihydroxy-ethyl)-2-hydroxymethyl-6-methyl-tetrahydro-pyran-3-yl ester

[(2R,3S,6S)-3-Benzyloxy-6-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-6-methyl-tetrahydro-pyran-2-yl]-methanol