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

Base Information

Chemical Name:4-nitrophenyl {2,3,8,9-tetrakis[2-(tert-butyldimethylsilyloxy)ethoxy]-5,6-dihydro-11,12-didehydrodibenzo[a,e][8]annulen-5-yl} carbonate
CAS No.:1443674-42-7
Molecular Formula:C₅₅H₈₇NO₁₃Si₄
Molecular Weight:1082.64
Hs Code.:

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

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

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

There total 7 articles about 4-nitrophenyl {2,3,8,9-tetrakis[2-(tert-butyldimethylsilyloxy)ethoxy]-5,6-dihydro-11,12-didehydrodibenzo[a,e][8]annulen-5-yl} carbonate 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: 94.0%

: 1443674-41-6
2,3,8,9-tetrakis[2-(tert-butyldimethylsilyloxy)ethoxy]-5-hydroxy-11,12-didehydro-5,6-dihydrodibenzo[a,e][8]annulene

: 7693-46-1
4-Nitrophenyl chloroformate

: 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:: With pyridine; In dichloromethane; at 0 - 25 ℃; for 14h;
DOI:10.1055/s-0032-1316875

Reference yield:

: 1443674-37-0
2,3,8,9-tetrakis[2-(tert-butyldimethylsilyloxy)ethoxy]-5,6,11,12-tetrahydro-5,11-epoxydibenzo[a,e][8]annulene

: 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 5 steps

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

2.1: 1H-imidazole / N,N-dimethyl-formamide / 14 h / 0 - 25 °C

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

3.2: 1 h / -78 - 25 °C

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

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

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

Reference yield:

: 1443674-38-1
C₄₈H₈₆O₉Si₄

: 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 4 steps

1.1: 1H-imidazole / N,N-dimethyl-formamide / 14 h / 0 - 25 °C

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

2.2: 1 h / -78 - 25 °C

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

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

With pyridine; 1H-imidazole; dioxane dibromide; pyridine hydrogenfluoride; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1055/s-0032-1316875