cas 3234-64-8, 1,1-DIETHYLPROPARGYLAMINE | Articles data ｜lookchem

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3234-64-8

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Preparation of a Series of Highly Hindered Secondary Amines, Including Bis(triethylcarbinyl)amine
A series of highly branched secondary amines was prepared by coupling propargylamines with propargyl chlorides.Hydrogenation of the resultant dipropargylamines was accomplished with Raney nickel in the presence of potassium hydroxide.The resultant amines, including bis(triethylcarbinyl)amine, are among the most hindered secondary amines reported to date.The pKa values of the conjugate acids of the series of secondary amines exhibit a regular decrease with increasing size of the amine.The bulkier members of the series are inert to methyl iodide.Bis(triethylcarbinyl)amine reacts with boron trifluoride etherate to give a primary amine adduct and 3-ethyl-2-pentene.
Kopka, Ihor E.,Fataftah, Zacharia A.,Rathke, Michael W.
p. 4616 - 4622
(2007/10/02)

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Chemical Properties

Appearance/Colour :clear colourless to slightly yellow liquid
Boiling Point: 132.7 °C at 760 mmHg
Flash Point:21.1 °C
Density: 0.845 g/cm³
Vapor Pressure: 8.78mmHg at 25°C
Refractive Index: n20/D 1.4409(lit.)
PKA: 8.79±0.25(Predicted)
PSA: 26.02000
LogP: 1.83740

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