2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene

Base Information

Chemical Name:2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene
CAS No.:77733-40-5
Molecular Formula:C₂₀H₂₂O₅
Molecular Weight:342.392
Hs Code.:

Synonyms:2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene

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Chemical Property of 2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene

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Technology Process of 2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene

There total 1 articles about 2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene 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: 87.0%

: 5703-21-9
3,4-dimethoxyphenylacetaldehyde

: 19611-17-7
2-(3',4'-dimethoxyphenyl)-6,7-dimethoxynaphthalene

: 77733-40-5
2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene

Guidance literature:: With hydrogenchloride; In 1,4-dioxane; for 1h;
DOI:10.1016/j.tet.2005.02.091

Reference yield:

: 77733-40-5
2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene

: C₂₈H₂₉NO₈S

Guidance literature:: Multi-step reaction with 2 steps

1: 97.5 percent / n-butyllithium / tetrahydrofuran / 4 h / Ambient temperature

2: bis-(2-methoxy-ethyl) ether / 1 h / Ambient temperature

With n-butyllithium; In tetrahydrofuran; diethylene glycol dimethyl ether;
DOI:10.1021/ja00398a019

Reference yield:

: 77733-40-5
2’,3’,2”,3”-tetramethoxy-2,3:6,7-dibenzo-9-oxabicyclo[3.3.1]nona-2,6-diene

: 1443674-42-7
4-nitrophenyl {2,3,8,9-tetrakis[2-(tert-butyldimethylsilyloxy)ethoxy]-5,6-dihydro-11,12-didehydrodibenzo[a,e][8]annulen-5-yl} carbonate

Guidance literature:: Multi-step reaction with 7 steps

1.1: boron tribromide / dichloromethane / 2 h / -78 - 25 °C

2.1: caesium carbonate / acetonitrile / 72 h / Reflux

3.1: n-butyllithium / hexane; tetrahydrofuran / 4 h / -78 - -50 °C

4.1: 1H-imidazole / N,N-dimethyl-formamide / 14 h / 0 - 25 °C

5.1: dioxane dibromide / tetrahydrofuran / 0.5 h / 0 °C / Darkness

5.2: 1 h / -78 - 25 °C

6.1: pyridine hydrogenfluoride / tetrahydrofuran / 10 h / -50 °C / Inert atmosphere

7.1: pyridine / dichloromethane / 14 h / 0 - 25 °C

With pyridine; 1H-imidazole; n-butyllithium; boron tribromide; dioxane dibromide; caesium carbonate; pyridine hydrogenfluoride; In tetrahydrofuran; hexane; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1055/s-0032-1316875