Unexpected Thorpe Reaction of an α-Alkoxynitrile

α-Alkoxynitrile 1 in the presence of tris(methylthio)methyllithium 2 at –78ºC gave the dimer 5 instead of the expected C1-elongated product 3. The formation of compound 5 is explained in terms of anion formation and self-condensation, a variant of the Thorpe reaction. Scrutinizing the 1H...

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Main Author: Lajos Kovács
Format: Article
Language:English
Published: MDPI AG 2000-02-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/5/2/127/
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author Lajos Kovács
author_facet Lajos Kovács
author_sort Lajos Kovács
collection DOAJ
description α-Alkoxynitrile 1 in the presence of tris(methylthio)methyllithium 2 at –78ºC gave the dimer 5 instead of the expected C1-elongated product 3. The formation of compound 5 is explained in terms of anion formation and self-condensation, a variant of the Thorpe reaction. Scrutinizing the 1H NMR spectra revealed that the enamine tautomer 5b is predominant over the imine 5a in the solvents investigated.
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spelling doaj.art-b3e0470f03094796b1be1b38c9606ff22022-12-21T18:48:51ZengMDPI AGMolecules1420-30492000-02-015212713110.3390/50200127Unexpected Thorpe Reaction of an α-AlkoxynitrileLajos Kovácsα-Alkoxynitrile 1 in the presence of tris(methylthio)methyllithium 2 at –78ºC gave the dimer 5 instead of the expected C1-elongated product 3. The formation of compound 5 is explained in terms of anion formation and self-condensation, a variant of the Thorpe reaction. Scrutinizing the 1H NMR spectra revealed that the enamine tautomer 5b is predominant over the imine 5a in the solvents investigated.http://www.mdpi.com/1420-3049/5/2/127/Thorpe reactionself-condensation
spellingShingle Lajos Kovács
Unexpected Thorpe Reaction of an α-Alkoxynitrile
Molecules
Thorpe reaction
self-condensation
title Unexpected Thorpe Reaction of an α-Alkoxynitrile
title_full Unexpected Thorpe Reaction of an α-Alkoxynitrile
title_fullStr Unexpected Thorpe Reaction of an α-Alkoxynitrile
title_full_unstemmed Unexpected Thorpe Reaction of an α-Alkoxynitrile
title_short Unexpected Thorpe Reaction of an α-Alkoxynitrile
title_sort unexpected thorpe reaction of an aza alkoxynitrile
topic Thorpe reaction
self-condensation
url http://www.mdpi.com/1420-3049/5/2/127/
work_keys_str_mv AT lajoskovaƒacs unexpectedthorpereactionofanazaalkoxynitrile