2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin

Base Information

• Chemical Name: 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin
• CAS No.: 91201-63-7
• Molecular Formula: C₂₀H₁₄O₄
• Molecular Weight: 318.329
• Mol file: 91201-63-7.mol

Synonyms:2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin

Chemical Property of 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin

There total 4 articles about 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin 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: 80.0%

2,3-diphenylbenzo-1,4-dioxin (75694-46-1) → 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin (91201-63-7)

Guidance literature:

With oxygen; rose bengal; In dichloromethane; at -78 ℃; for 2h; Irradiation;

DOI:10.1021/jo00195a008

Reference yield:

2,3-Diphenyl-2,3-dihydro-benzo[1,4]dioxin-2-ol (91201-75-1) → 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin (91201-63-7)

Guidance literature:

Multi-step reaction with 2 steps

1: SOCl₂, pyridine / 4 h / 90 °C

2: 80 percent / O₂, Rose Bengal / CH₂Cl₂ / 2 h / -78 °C / Irradiation

With pyridine; thionyl chloride; oxygen; rose bengal; In dichloromethane;

DOI:10.1021/jo00195a008

Reference yield:

benzene-1,2-diol (120-80-9,19481-10-8,37349-32-9) → 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin (91201-63-7)

Guidance literature:

Multi-step reaction with 3 steps

1: NaOEt / 3 h / Ambient temperature

2: SOCl₂, pyridine / 4 h / 90 °C

3: 80 percent / O₂, Rose Bengal / CH₂Cl₂ / 2 h / -78 °C / Irradiation

With pyridine; thionyl chloride; oxygen; sodium ethanolate; rose bengal; In dichloromethane;

DOI:10.1021/jo00195a008

upstream raw materials:

2,3-diphenylbenzo-1,4-dioxin

2,3-Diphenyl-2,3-dihydro-benzo[1,4]dioxin-2-ol

benzene-1,2-diol

desyl bromide

Downstream raw materials:

o-phenylene dibenzoate

Refernces