1,2,8,8a-tetrahydro-2-methyl-1-methylene-3,8a-diphenylcyclopentindene

Base Information

• Chemical Name: 1,2,8,8a-tetrahydro-2-methyl-1-methylene-3,8a-diphenylcyclopent
• Molecular Formula: C₂₆H₂₂
• Molecular Weight: 334.461

Synonyms:

Chemical Property of 1,2,8,8a-tetrahydro-2-methyl-1-methylene-3,8a-diphenylcyclopent

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

There total 6 articles about 1,2,8,8a-tetrahydro-2-methyl-1-methylene-3,8a-diphenylcyclopentindene 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-Diphenylpropanone (102-04-5) → 1,2,8,8a-tetrahydro-2-methyl-1-methylene-3,8a-diphenylcyclopentindene (107319-81-3)

Guidance literature:

Multi-step reaction with 4 steps

1: 1.) 1,7-diazabicyclo<6.3.0>undec-7-ene; 2.) SOCl₂ / 1.) EtOH, rt, 12 h; 2.) pyridine, 0 deg C, 10 min

2: 92 percent

3: bis-(2-methoxy-ethyl) ether / Heating

4: 0.17 h / 200 °C

With thionyl chloride; 1,7-diazabicyclo<6.3.0>undec-7-ene; In diethylene glycol dimethyl ether;

Reference yield:

4-hydroxy-3,4-dimethyl-2,5-diphenylcyclopent-2-enone (108312-63-6) → 1,2,8,8a-tetrahydro-2-methyl-1-methylene-3,8a-diphenylcyclopentindene (107319-81-3)

Guidance literature:

Multi-step reaction with 4 steps

1: 20 percent / p-TsOH / toluene / 0.33 h / Heating

2: 92 percent

3: bis-(2-methoxy-ethyl) ether / Heating

4: 0.17 h / 200 °C

With toluene-4-sulfonic acid; In diethylene glycol dimethyl ether; toluene;

Reference yield:

7,8-dimethyl-6,9-diphenylbenzocyclo-octene (107319-77-7) → 1,2,8,8a-tetrahydro-2-methyl-1-methylene-3,8a-diphenylcyclopentindene (107319-81-3)

Guidance literature:

at 200 ℃; for 0.166667h;

upstream raw materials:

7,8-dimethyl-6,9-diphenylbenzocyclo-octene

bicyclo[4.2.0]octa-1,3,5,7-tetraene

3,4-dimethyl-2,5-diphenylcyclopenta-2,4-dienone

4-hydroxy-3,4-dimethyl-2,5-diphenylcyclopent-2-enone

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