2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile

Base Information

Chemical Name:2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile
CAS No.:1401464-93-4
Molecular Formula:C₂₃H₂₀N₂Si
Molecular Weight:352.511
Hs Code.:

Synonyms:2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile

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Chemical Property of 2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile

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Technology Process of 2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile

There total 4 articles about 2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile 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: 70.0%

: 298212-99-4
2-(4-iodophenyl)-1,8a-dihydroazulene-1,1-dicarbonitrile

: 1066-54-2
trimethylsilylacetylene

: 1401464-93-4
2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile

Guidance literature:: With copper(l) iodide; tetrakis(triphenylphosphine) palladium⁽⁰⁾; diisopropylamine; In tetrahydrofuran; at 25 ℃; for 16h; Inert atmosphere;
DOI:10.1021/jo4020326

Reference yield: 48.0%

: 1401464-92-3
2-{(2-cyclohepta-2,4,6-trienyl)-1-[4-(trimethylsilylethynyl)phenyl]ethylidene}malononitrile

: 1401464-93-4
2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile

Guidance literature:: 2-{(2-cyclohepta-2,4,6-trienyl)-1-[4-(trimethylsilylethynyl)phenyl]ethylidene}malononitrile; With trityl tetrafluoroborate; In dichloromethane; at 20 ℃; for 16h;

With triethylamine; In dichloromethane; at 0 - 20 ℃;

In acetonitrile; at 50 ℃; for 0.5h;
DOI:10.1021/jo301306y

Reference yield:

: 75883-03-3
4'-(2-trimethylsilylethynyl)acetophenone

: 1401464-93-4
2-[(4-(trimethylsilylethynyl)phenyl)]-1,8a-dihydroazulene-1,1-dicarbonitrile

Guidance literature:: Multi-step reaction with 3 steps

1.1: acetic acid; ammonium acetate / toluene / 2 h / Reflux

2.1: triethylamine / dichloromethane / 1.17 h / -78 °C / Inert atmosphere

3.1: trityl tetrafluoroborate / dichloromethane / 16 h / 20 °C

3.2: 0 - 20 °C

3.3: 0.5 h / 50 °C

With ammonium acetate; trityl tetrafluoroborate; acetic acid; triethylamine; In dichloromethane; toluene; 1.1: |Knoevenagel Condensation;
DOI:10.1021/jo301306y