(S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane

Base Information

• Chemical Name: (S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane
• CAS No.: 337984-85-7
• Molecular Formula: C₂₅H₃₆O₃
• Molecular Weight: 384.559
• Mol file: 337984-85-7.mol

Synonyms:(S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane

Chemical Property of (S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane

There total 2 articles about (S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane 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: 95.0%

benzyl bromide (100-39-0) + (E)-(R)-7-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-tridec-5-en-8-yn-7-ol (337984-82-4) → (S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane (337984-85-7)

Guidance literature:

With tetra-(n-butyl)ammonium iodide; sodium hydride; In tetrahydrofuran; at 0 - 25 ℃; for 16h;

DOI:10.1021/ol0156704

Reference yield:

7-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-trideca-5,8-diyn-7-ol → (S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane (337984-85-7)

Guidance literature:

Multi-step reaction with 2 steps

1.1: n-BuLi / tetrahydrofuran; hexane / 0.5 h / -78 °C

1.2: 94 percent / DIBAL / tetrahydrofuran; hexane / 2.5 h / -78 - 0 °C

2.1: 95 percent / n-Bu₄NI; NaH / tetrahydrofuran / 16 h / 0 - 25 °C

With n-butyllithium; tetra-(n-butyl)ammonium iodide; sodium hydride; In tetrahydrofuran; hexane;

DOI:10.1021/ol0156704

Reference yield: 77.0%

methanol (67-56-1) + (S)-4-((E)-(R)-1-Benzyloxy-1-hex-1-ynyl-hept-2-enyl)-2,2-dimethyl-[1,3]dioxolane (337984-85-7) → (R)-2-Benzyloxy-2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-oct-3-ynoic acid methyl ester (337984-86-8)

Guidance literature:

With sodium hydroxide; ozone; In dichloromethane; at -78 ℃; for 2h;

DOI:10.1021/ol0156704

upstream raw materials:

benzyl bromide

(E)-(R)-7-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-tridec-5-en-8-yn-7-ol

Downstream raw materials:

(R)-2-Benzyloxy-2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-oct-3-ynoic acid methyl ester

(R)-8-Benzyloxy-8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-7-hex-1-ynyl-tetradeca-5,9-diyn-7-ol