(3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol

Base Information

• Chemical Name: (3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol
• CAS No.: 1422040-24-1
• Molecular Formula: C₂₀H₂₈O₄
• Molecular Weight: 332.44
• Mol file: 1422040-24-1.mol

Synonyms:(3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol

Chemical Property of (3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol

There total 2 articles about (3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-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: 70.0%

(S)-2-(benzyloxy)but-3-enal (1150102-89-8) + (S)-(-)-3-methoxymethoxy-1-heptyne (790695-76-0) → (3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol (1422040-24-1)

Guidance literature:

(S)-(-)-3-methoxymethoxy-1-heptyne; With ethylmagnesium bromide; In tetrahydrofuran; at 0 - 20 ℃; for 1h;

(S)-2-(benzyloxy)but-3-enal; With magnesium bromide ethyl etherate; In dichloromethane; at -78 - 0 ℃; for 1.33333h; Inert atmosphere;

DOI:10.1016/j.tetlet.2012.12.039

Reference yield:

(S)-(-)-1-heptyn-3-ol (51703-66-3) → (3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol (1422040-24-1)

Guidance literature:

Multi-step reaction with 2 steps

1.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C

2.1: ethylmagnesium bromide / tetrahydrofuran / 1 h / 0 - 20 °C

2.2: 1.33 h / -78 - 0 °C / Inert atmosphere

With ethylmagnesium bromide; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane;

DOI:10.1016/j.tetlet.2012.12.039

Reference yield: 92.0%

(3S,4S,7S)-3-(benzyloxy)-7-(methoxymethoxy)undec-1-en-5-yn-4-ol (1422040-24-1) + t-butyldimethylsiyl triflate (69739-34-0) → (5S,8S)-8-((S)-1-(benzyloxy)allyl)-5-butyl-10,10,11,11-tetramethyl-2,4,9-trioxa-10-siladodec-6-yne (1422040-28-5)

Guidance literature:

With 2,6-dimethylpyridine; In dichloromethane; for 1h;

DOI:10.1016/j.tetlet.2012.12.039

upstream raw materials:

(S)-2-(benzyloxy)but-3-enal

(S)-(-)-3-methoxymethoxy-1-heptyne

(S)-(-)-1-heptyn-3-ol

Downstream raw materials:

(4S,5S,8S,Z)-methyl 4-(benzyloxy)-5-(tert-butyldimethylsilyloxy)-8-(methoxymethoxy)dodec-2-en-6-ynoate

(5S,6S)-5-(benzyloxy)-6-((S)-3-hydroxyhept-1-ynyl)-5,6-dihydro-2H-pyran-2-one

(5S,6S)-5-(benzyloxy)-6-((S,Z)-3-hydroxyhept-1-enyl)-5,6-dihydro-2H-pyran-2-one

(S,Z)-1-((2S,3S)-3-(benzyloxy)-6-oxo-3,6-dihydro-2H-pyran-2-yl)hept-1-en-3-yl acetate