2H-Pyran-4-ol, tetrahydro-4-methyl-2-propyl-, (2R,4R)- (9CI)

Base Information

• Chemical Name: 2H-Pyran-4-ol, tetrahydro-4-methyl-2-propyl-, (2R,4R)- (9CI)
• CAS No.: 723340-91-8
• Molecular Formula: C₉H₁₈O₂
• Molecular Weight: 158.241
• Mol file: 723340-91-8.mol

Synonyms:2H-Pyran-4-ol, tetrahydro-4-methyl-2-propyl-, (2R,4R)- (9CI)

Chemical Property of 2H-Pyran-4-ol, tetrahydro-4-methyl-2-propyl-, (2R,4R)- (9CI)

Chemical Property:

• PSA: 29.46000
• LogP: 1.71650

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2H-Pyran-4-ol, tetrahydro-4-methyl-2-propyl-, (2R,4R)- (9CI)

There total 9 articles about 2H-Pyran-4-ol, tetrahydro-4-methyl-2-propyl-, (2R,4R)- (9CI) 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: 40.0%

2-methyl-1-buten-4-ol (763-32-6) + butyraldehyde (123-72-8) → anti-4-methyl-2-propyltetrahydro-2H-pyran-4-ol (723340-91-8) + syn-4-methyl-2-propyltetrahydro-2H-pyran-4-ol (723340-91-8)

Guidance literature:

With silica gel; toluene-4-sulfonic acid; for 0.583333h; grinding; neat (no solvent);

DOI:10.1590/S0103-50532010000800023

Reference yield: 40.0%

2-methyl-1-buten-4-ol (763-32-6) + butyraldehyde (123-72-8) → anti-4-methyl-2-propyltetrahydro-2H-pyran-4-ol (723340-91-8) + syn-4-methyl-2-propyltetrahydro-2H-pyran-4-ol (723340-91-8)

Guidance literature:

With silica gel; toluene-4-sulfonic acid; for 0.583333h; grinding; neat (no solvent);

DOI:10.1590/S0103-50532010000800023

Reference yield:

acetic anhydride (108-24-7) + 4-methyl-2-propyltetrahydro-2H-pyran-4-ol (57094-41-4) → syn-4-methyl-2-propyltetrahydro-2H-pyran-4-yl acetate (723340-91-8,131766-73-9,723340-63-4,723340-89-4,723340-92-9,723340-93-0) + anti-4-methyl-2-propyltetrahydro-2H-pyran-4-yl acetate (723340-91-8,131766-73-9,723340-63-4,723340-89-4,723340-92-9,723340-93-0)

Guidance literature:

With pyridine; at 20 ℃; for 7h;

DOI:10.1590/S0103-50532010000800023

upstream raw materials:

(3RS,5S)-3-methyloctane-1,3,5-triol

(3RS,5S)-3-methyloctane-1,3,5-triol 5-acetate

(3RS,5S)-3-methyloctane-1,3.5-triol 1-acetate

2-methyl-1-buten-4-ol

Downstream raw materials:

(2R,4R)-tetrahydro-4-methyl-2-propyl-2H-pyran-4-ol acetate

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