(2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol

Base Information

• Chemical Name: (2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol
• CAS No.: 377751-10-5
• Molecular Formula: C₃₂H₄₂O₄Si
• Molecular Weight: 518.769
• Mol file: 377751-10-5.mol

Synonyms:(2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol

Chemical Property of (2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol

There total 6 articles about (2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol 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: 73.0%

tert-butylchlorodiphenylsilane (58479-61-1) + (2E,5R,6S)-6-[(4-methoxyphenyl)methoxy]-5-methyl-2-heptene-1,7-diol (377751-09-2) → (2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol (377751-10-5)

Guidance literature:

With dmap; triethylamine; In dichloromethane; at -78 - -20 ℃; for 2h;

DOI:10.1021/ja048320w

Reference yield:

ethyl (2E,5R,6S)-6,7-(isopropylidene)dioxy-5-methyl-2-heptenoate (377751-06-9) → (2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol (377751-10-5)

Guidance literature:

Multi-step reaction with 5 steps

1: DIBAL-H / CH₂Cl₂; toluene / 0.75 h / -78 °C

2: Amberlyst 15 / aq. methanol / 12 h / 50 °C

3: 18.9 g / TsOH*H₂O / dimethylformamide / 17 h / 50 °C

4: 15.6 g / DIBAL-H / CH₂Cl₂; toluene / 4.5 h / -78 °C

5: 73 percent / Et₃N; DMAP / CH₂Cl₂ / 2 h / -78 - -20 °C

With dmap; Amberlyst 15; diisobutylaluminium hydride; toluene-4-sulfonic acid; triethylamine; In methanol; dichloromethane; N,N-dimethyl-formamide; toluene;

DOI:10.1021/ja048320w

Reference yield:

(2E,5R,6S)-6,7-(isopropylidene)dioxy-5-methyl-2-hepten-1-ol (377751-07-0) → (2S,3R,5E)-7-(tert-butyldiphenylsilyloxy)-2-[(4-methoxyphenyl)methoxy]-3-methyl-5-hepten-1-ol (377751-10-5)

Guidance literature:

Multi-step reaction with 4 steps

1: Amberlyst 15 / aq. methanol / 12 h / 50 °C

2: 18.9 g / TsOH*H₂O / dimethylformamide / 17 h / 50 °C

3: 15.6 g / DIBAL-H / CH₂Cl₂; toluene / 4.5 h / -78 °C

4: 73 percent / Et₃N; DMAP / CH₂Cl₂ / 2 h / -78 - -20 °C

With dmap; Amberlyst 15; diisobutylaluminium hydride; toluene-4-sulfonic acid; triethylamine; In methanol; dichloromethane; N,N-dimethyl-formamide; toluene;

DOI:10.1021/ja048320w

upstream raw materials:

tert-butylchlorodiphenylsilane

(2E,5R,6S)-6-[(4-methoxyphenyl)methoxy]-5-methyl-2-heptene-1,7-diol

(2S,3R,5E)-3-methyl-5-heptene-1,2,7-triol

(2E,5R,6S)-6,7-(isopropylidene)dioxy-5-methyl-2-hepten-1-ol

Downstream raw materials:

(3S,4R,6E)-8-(tert-butyldiphenylsilyloxy)-3-[(4-methoxyphenyl)methoxy]-4-methyl-6-octen-1-yne

(3S,4R,6E)-1,1-dibromo-8-(tert-butyldiphenylsilyloxy)-3-[(4-methoxyphenyl)methoxy]-4-methyl-1,6-octadiene

(2E,5R,6S,7Z,9E)-6-[(4-methoxyphenyl)methoxy]-5-methyl-12-(triphenylmethoxy)-2,7,9-dodecatrien-1-al

(2E,5R,6S,7Z,9E)-6-[(4-methoxyphenyl)methoxy]-5-methyl-12-(triphenylmethoxy)-2,7,9-dodecatrien-1-ol