(E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile

Base Information

Chemical Name:(E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile
CAS No.:1388020-54-9
Molecular Formula:C₂₇H₁₇N₃OS
Molecular Weight:431.517
Hs Code.:

Synonyms:(E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile

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Chemical Property of (E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile

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Technology Process of (E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile

There total 3 articles about (E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile 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: 38.0%

: 1388020-64-1
(E)-3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)acrylaldehyde

: 109-77-3
malononitrile

: 1388020-54-9
(E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile

Guidance literature:: In ethanol; for 1h; Inert atmosphere; Reflux;
DOI:10.1016/j.tet.2012.05.123

Reference yield:

: 129806-51-5
2,6-diphenyl-(4H-pyran-4ylidene)-diphenylphosphine oxide

: 1388020-54-9
(E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile

Guidance literature:: Multi-step reaction with 3 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / -78 °C / Inert atmosphere

1.2: -78 - 20 °C / Inert atmosphere

2.1: n-butyllithium / tetrahydrofuran; hexane / 1 h / -78 °C / Inert atmosphere

2.2: -78 - 0 °C / Inert atmosphere

3.1: ethanol / 1 h / Inert atmosphere; Reflux

With n-butyllithium; In tetrahydrofuran; ethanol; hexane; 1.1: Horner-Wadsworth-Emmons olefination / 1.2: Horner-Wadsworth-Emmons olefination / 3.1: Knoevenagel condensation;
DOI:10.1016/j.tet.2012.05.123

Reference yield:

: 1388020-61-8
2-((2,6-diphenyl-4H-pyran-4-yliden)methyl)thiazole

: 1388020-54-9
(E)-5-(3-(2-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thiazol-5-yl)allylidene)malononitrile

Guidance literature:: Multi-step reaction with 2 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / 1 h / -78 °C / Inert atmosphere

1.2: -78 - 0 °C / Inert atmosphere

2.1: ethanol / 1 h / Inert atmosphere; Reflux

With n-butyllithium; In tetrahydrofuran; ethanol; hexane; 2.1: Knoevenagel condensation;
DOI:10.1016/j.tet.2012.05.123