Cyclopenta[b]pyran-7(2H)-one, 6-butyl-3,4,5,6-tetrahydro-, (6R)- (9CI)

Base Information

• Chemical Name: Cyclopenta[b]pyran-7(2H)-one, 6-butyl-3,4,5,6-tetrahydro-, (6R)- (9CI)
• CAS No.: 748771-06-4
• Molecular Formula: C₁₂H₁₈O₂
• Molecular Weight: 194.274
• Mol file: 748771-06-4.mol

Synonyms:Cyclopenta[b]pyran-7(2H)-one, 6-butyl-3,4,5,6-tetrahydro-, (6R)- (9CI)

Chemical Property of Cyclopenta[b]pyran-7(2H)-one, 6-butyl-3,4,5,6-tetrahydro-, (6R)- (9CI)

Chemical Property:

• Boiling Point: 325.5±12.0 °C(Predicted)
• PSA: 0.00000
• Density: 1.04±0.1 g/cm3(Predicted)
• LogP: 0.00000

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Cyclopenta[b]pyran-7(2H)-one, 6-butyl-3,4,5,6-tetrahydro-, (6R)- (9CI)

There total 4 articles about Cyclopenta[b]pyran-7(2H)-one, 6-butyl-3,4,5,6-tetrahydro-, (6R)- (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:

1-(3,4-dihydro-2H-pyran-6-yl)-2-methylenehexan-1-one → 6-butyl-3,4,5,6-tetrahydro-2H-cyclopenta[b]pyran-7-one (748771-06-4) + 6-butyl-3,4,5,6-tetrahydro-2H-cyclopenta[b]pyran-7-one (748771-06-4)

Guidance literature:

With (1S,2R)-scandium indane-pybox; 3 A molecular sieve; In acetonitrile; at 20 ℃; for 1.5h; Title compound not separated from byproducts;

DOI:10.1021/ja0476664

Reference yield:

1-(3,4-dihydro-2H-pyran-6-yl)-2-methylenehexan-1-one → 6-butyl-3,4,5,6-tetrahydro-2H-cyclopenta[b]pyran-7-one (748771-06-4) + 6-butyl-3,4,5,6-tetrahydro-2H-cyclopenta[b]pyran-7-one (748771-06-4)

Guidance literature:

With (1S,2R)-scandium indane-pybox; 3 A molecular sieve; In acetonitrile; at 20 ℃; for 1.5h; Title compound not separated from byproducts;

DOI:10.1021/ja0476664

Reference yield:

2-butyl-1-(5,6-dihydro-4H-pyran-2-yl)-prop-2-en-1-ol → 6-butyl-3,4,5,6-tetrahydro-2H-cyclopenta[b]pyran-7-one (748771-06-4)

Guidance literature:

Multi-step reaction with 2 steps

1: (1S,2R)-scandium indane-pybox complex; 3A molecular sieves / acetonitrile / 1.5 h / 20 °C

With (1S,2R)-scandium indane-pybox; 3 A molecular sieve; In acetonitrile; 1: Dess-Martin oxidation / 2: Nazarov cyclization;

DOI:10.1021/ja0476664