(1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene

Base Information

• Chemical Name: (1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene
• CAS No.: 817201-09-5
• Molecular Formula: C₂₈H₃₈O₄Si
• Molecular Weight: 466.693
• Mol file: 817201-09-5.mol

Synonyms:(1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene

Chemical Property of (1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene

There total 6 articles about (1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene 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:

exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride (6118-51-0) → (1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene (817201-09-5)

Guidance literature:

Multi-step reaction with 6 steps

1: LiAlH₄ / tetrahydrofuran / 20 h / 0 °C

2: 2.92 g / pyridine / 17 h / 20 °C

3: lipase PS (Amano); H₂O / tetrahydrofuran / 480 h / 20 °C

4: 97 percent / PPTS / CH₂Cl₂ / 1 h / 20 °C

5: 100 percent / NaOMe / methanol / 2 h / 20 °C

6: imidazole / dimethylformamide / 23 h / 0 °C

With pyridine; 1H-imidazole; lithium aluminium tetrahydride; Lipase PS (Amano); water; sodium methylate; pyridinium p-toluenesulfonate; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;

DOI:10.1021/jo048566j

Reference yield:

(1R,2R,3S,4S)-2-(1-ethoxyethoxy)methyl-3-hydroxymethyl-7-oxabicyclo[2.2.1]hept-5-ene (817201-08-4) + tert-butylchlorodiphenylsilane (58479-61-1) → (1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene (817201-09-5)

Guidance literature:

With 1H-imidazole; In N,N-dimethyl-formamide; at 0 ℃; for 23h;

DOI:10.1021/jo048566j

Reference yield:

exo-2,3-bis(hydroxymethyl)-7-oxabicyclo[2.2.1]hept-5-ene (106137-27-3,817201-06-2) → (1S,2S,3R,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene (817201-09-5)

Guidance literature:

Multi-step reaction with 5 steps

1: 2.92 g / pyridine / 17 h / 20 °C

2: lipase PS (Amano); H₂O / tetrahydrofuran / 480 h / 20 °C

3: 97 percent / PPTS / CH₂Cl₂ / 1 h / 20 °C

4: 100 percent / NaOMe / methanol / 2 h / 20 °C

5: imidazole / dimethylformamide / 23 h / 0 °C

With pyridine; 1H-imidazole; Lipase PS (Amano); water; sodium methylate; pyridinium p-toluenesulfonate; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;

DOI:10.1021/jo048566j

upstream raw materials:

(1R,2R,3S,4S)-2-(1-ethoxyethoxy)methyl-3-hydroxymethyl-7-oxabicyclo[2.2.1]hept-5-ene

tert-butylchlorodiphenylsilane

(1S,2S,3R,4R)-2-acetoxymethyl-3-(1-ethoxyethoxy)methyl-7-oxabicyclo[2.2.1]hept-5-ene

exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride

Downstream raw materials:

tert-Butyl-[(1R,6S,7S,8R)-8-(1-ethoxy-ethoxymethyl)-9-oxa-bicyclo[4.2.1]nona-2,4-dien-7-ylmethoxy]-diphenyl-silane

(1R,6S,7R,8S)-7-(furan-2-carbonyl)-8-methyl-9-oxabicyclo[4.2.1]nona-2,4-diene

(1S,2S,3S,4R)-2-(tert-butyldiphenylsilyloxy)methyl-3-methyl-7-oxabicyclo[2.2.1]hept-5-ene

(1R,6S,7S,8R)-7-(tert-butyldiphenylsilyloxy)methyl-8-methyl-9-oxabicyclo[4.2.1]nona-2,4-diene