(2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol

Base Information

• Chemical Name: (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol
• CAS No.: 359868-31-8
• Molecular Formula: C₂₀H₃₂O₄
• Molecular Weight: 336.472
• Mol file: 359868-31-8.mol

Synonyms:(2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol

Chemical Property of (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol

There total 2 articles about (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-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: 92.0%

2,2-dimethoxy-propane (77-76-9) + (2S,3S,4R,5S,6S)-5-(benzyloxy)-2,4,6-trimethylheptane-1,3,7-triol (171231-73-5) → (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol (359868-31-8)

Guidance literature:

With camphor-10-sulfonic acid; In dichloromethane; at 25 ℃; for 1h;

DOI:10.1016/S0040-4039(02)01705-7

Reference yield:

(4R)-7-benzyloxy-4,6,8-trimethyl-2,9-dioxabicyclo[3.3.1]nonan-3-one → (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol (359868-31-8)

Guidance literature:

Multi-step reaction with 2 steps

1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 - 20 °C / Inert atmosphere

2: (1S)-10-camphorsulfonic acid / dichloromethane / 0.5 h / 20 °C

With lithium aluminium tetrahydride; (1S)-10-camphorsulfonic acid; In tetrahydrofuran; dichloromethane;

DOI:10.1002/ejoc.201201684

Reference yield: 96.0%

p-toluenesulfonyl chloride (98-59-9) + (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentan-1-ol (359868-31-8) → (2S,3S,4S)-3-benzyloxy-2-methyl-4-[(4S,5S)-2,2,5-trimethyl-1,3-dioxolan-4-yl]pentyl 4-methyl-1-benzenesulfonate (1011832-59-9)

Guidance literature:

With triethylamine; at 25 ℃; for 1.5h;

DOI:10.1016/j.tet.2007.11.091

upstream raw materials:

2,2-dimethoxy-propane

(2S,3S,4R,5S,6S)-5-(benzyloxy)-2,4,6-trimethylheptane-1,3,7-triol

Downstream raw materials:

(2R,3R,4S)-3-Benzyloxy-2-methyl-4-((4S,5S)-2,2,5-trimethyl-[1,3]dioxan-4-yl)-pentanal

(2S,3S,4R,5S,6S)-5-(benzyloxy)-2,4,6-trimethylheptane-1,3,7-triol

(E)-(2R,3R,4R,8S,9S,10S)-1,3,9-Tris-benzyloxy-2,4,8-trimethyl-10-((4S,5S)-2,2,5-trimethyl-[1,3]dioxan-4-yl)-undec-6-en-5-one

2,2-Dimethyl-propionic acid (2S,3S,4R,5R,6R)-3-benzyloxy-5-hydroxy-2,4,6-trimethyl-7-oxo-heptyl ester