Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide)
A series of novel cobalt bis(dicarbollide) based amidines were synthesized by the nucleophilic addition of primary and secondary amines to highly activated B-N ≡C-R triple bond of the propionitrilium derivative [8-EtC≡N-3,3'-Co(1,2-C B H )(1',2'-C B H )]. The reactions with primary am...
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Veröffentlicht in: | Molecules (Basel, Switzerland) Switzerland), 2021-10, Vol.26 (21), p.6544 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
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Zusammenfassung: | A series of novel cobalt bis(dicarbollide) based amidines were synthesized by the nucleophilic addition of primary and secondary amines to highly activated B-N
≡C-R triple bond of the propionitrilium derivative [8-EtC≡N-3,3'-Co(1,2-C
B
H
)(1',2'-C
B
H
)]. The reactions with primary amines result in the formation of mixtures of
and
isomers of amidines, whereas the reactions with secondary amines lead selectively to the
-isomers. The crystal molecular structures of
-[8-EtC(NMe
)=HN-3,3'-Co(1,2-C
B
H
)(1',2'-C
B
H
)],
-[8-EtC(NEt
)=HN-3,3'-Co(1,2- C
B
H
)(1',2'-C
B
H
)] and
-[8-EtC(NC
H
)=HN-3,3'-Co(1,2-C
B
H
)(1',2'-C
B
H
)] were determined by single crystal X-ray diffraction. |
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ISSN: | 1420-3049 1420-3049 |
DOI: | 10.3390/molecules26216544 |