7,11-Diphenylspiro[5.5]undecane-1,9-dione

Base Information

• Chemical Name: 7,11-Diphenylspiro[5.5]undecane-1,9-dione
• CAS No.: 1521-72-8
• Molecular Formula: C₂₃H₂₄O₂
• Molecular Weight: 332.442
• DSSTox Substance ID: DTXSID50535711
• Mol file: 1521-72-8.mol

Synonyms:1521-72-8;7,11-Diphenylspiro[5.5]undecane-1,9-dione;DTXSID50535711

Chemical Property of 7,11-Diphenylspiro[5.5]undecane-1,9-dione

Chemical Property:

• XLogP3: 3.7
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 2
• Exact Mass: 332.177630004
• Heavy Atom Count: 25
• Complexity: 466

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1CCC2(C(CC(=O)CC2C3=CC=CC=C3)C4=CC=CC=C4)C(=O)C1

Technology Process of 7,11-Diphenylspiro[5.5]undecane-1,9-dione

There total 3 articles about 7,11-Diphenylspiro[5.5]undecane-1,9-dione 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: 89.0%

cyclohexanone (108-94-1,11119-77-0,9003-41-2,9075-99-4) + 1,5-diphenyl-1,4-pentadiene-3-one (538-58-9) → (7R,11R)-7,11-Diphenyl-spiro[5.5]undecane-1,9-dione (1521-72-8,68297-31-4)

Guidance literature:

With sodium hydroxide; cetyltrimethylammonim bromide; In dichloromethane; for 2h; Product distribution; Ambient temperature; other substituted cyclohexanones, stereoselectivity;

Reference yield:

1,5-Diphenyl-5-<2-keto-cyclohexyl>-pent-1-en-3-on (1521-69-3) → 7,11-Diphenyl-spiro<5.5>undecan-1,9-dion (1521-72-8)

Guidance literature:

With ethanol; sodium ethanolate;

Reference yield:

1,5-diphenyl-1,4-pentadiene-3-one (538-58-9) → 7,11-Diphenyl-spiro<5.5>undecan-1,9-dion (1521-72-8)

Guidance literature:

Multi-step reaction with 2 steps

1: (i) dioxane, (ii) aq. AcOH

2: NaOEt, EtOH

With ethanol; sodium ethanolate;

upstream raw materials:

1,5-Diphenyl-5-<2-keto-cyclohexyl>-pent-1-en-3-on

1,5-diphenyl-1,4-pentadiene-3-one

cyclohexanone