1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene

Base Information

• Chemical Name: 1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene
• CAS No.: 78239-40-4
• Molecular Formula: C₁₅H₁₂Cl₂F₂
• Molecular Weight: 301.163

Synonyms:1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene

Chemical Property of 1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene

Chemical Property:

Purity/Quality:

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Technology Process of 1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene

There total 1 articles about 1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene 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: 22.0%

1,2-dichloro-3,3-difluorocyclopropene (6262-45-9) + 2,3-bis(methylene)-1,2,3,4-tetrahydronaphthalene (65957-27-9) → 2,3-dimethylnaphthalene (581-40-8) + 1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene (78239-40-4)

Guidance literature:

With sodium hydrogencarbonate; In tetrachloromethane; dichloromethane; at 45 ℃; for 144h;

DOI:10.1002/hlca.19820650405

Reference yield:

1a,9a-dichloro-1,1-difluoro-1a,2,3,8,9,9a-hexahydro-1H-cyclopropanthracene (78239-40-4) → 1,1-difluoro-1H-cyclopropanthracene (78239-34-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 88 percent / 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) / CCl₄ / 20 h / Ambient temperature

2: 96 percent / t-BuOK / tetrahydrofuran / 2.75 h / -70 °C

With potassium tert-butylate; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In tetrahydrofuran; tetrachloromethane;

DOI:10.1002/hlca.19820650405

upstream raw materials:

1,2-dichloro-3,3-difluorocyclopropene

2,3-bis(methylene)-1,2,3,4-tetrahydronaphthalene

Downstream raw materials:

1,1-difluoro-1H-cyclopropanthracene

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