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<sup>+</sup>≡C–R triple bond of the propionitrilium derivative [8-EtC≡N-3,3′-Co(1,2-C<sub>2</sub>B<sub>9</su...
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oai:doaj.org-article:4446a89e599541dca77225f973a79b5b2021-11-11T18:31:47ZSynthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide)10.3390/molecules262165441420-3049https://doaj.org/article/4446a89e599541dca77225f973a79b5b2021-10-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6544https://doaj.org/toc/1420-3049A series of novel cobalt bis(dicarbollide) based amidines were synthesized by the nucleophilic addition of primary and secondary amines to highly activated B-N<sup>+</sup>≡C–R triple bond of the propionitrilium derivative [8-EtC≡N-3,3′-Co(1,2-C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)]. The reactions with primary amines result in the formation of mixtures of <i>E</i> and <i>Z</i> isomers of amidines, whereas the reactions with secondary amines lead selectively to the <i>E</i>-isomers. The crystal molecular structures of <i>E</i>-[8-EtC(NMe<sub>2</sub>)=HN-3,3′-Co(1,2-C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)], <i>E</i>-[8-EtC(NEt<sub>2</sub>)=HN-3,3′-Co(1,2- C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)] and <i>E</i>-[8-EtC(NC<sub>5</sub>H<sub>10</sub>)=HN-3,3′-Co(1,2-C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)] were determined by single crystal X-ray diffraction.Ekaterina V. BogdanovaMarina Yu. StogniyKyrill Yu. SuponitskyIgor B. SivaevVladimir I. BregadzeMDPI AGarticlecobalt bis(dicarbollide)nitrilium derivativesamidinesnucleophilic addition reactionssynthesisstructureOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6544, p 6544 (2021) |
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DOAJ |
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cobalt bis(dicarbollide) nitrilium derivatives amidines nucleophilic addition reactions synthesis structure Organic chemistry QD241-441 |
spellingShingle |
cobalt bis(dicarbollide) nitrilium derivatives amidines nucleophilic addition reactions synthesis structure Organic chemistry QD241-441 Ekaterina V. Bogdanova Marina Yu. Stogniy Kyrill Yu. Suponitsky Igor B. Sivaev Vladimir I. Bregadze Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide) |
description |
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<sup>+</sup>≡C–R triple bond of the propionitrilium derivative [8-EtC≡N-3,3′-Co(1,2-C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)]. The reactions with primary amines result in the formation of mixtures of <i>E</i> and <i>Z</i> isomers of amidines, whereas the reactions with secondary amines lead selectively to the <i>E</i>-isomers. The crystal molecular structures of <i>E</i>-[8-EtC(NMe<sub>2</sub>)=HN-3,3′-Co(1,2-C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)], <i>E</i>-[8-EtC(NEt<sub>2</sub>)=HN-3,3′-Co(1,2- C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)] and <i>E</i>-[8-EtC(NC<sub>5</sub>H<sub>10</sub>)=HN-3,3′-Co(1,2-C<sub>2</sub>B<sub>9</sub>H<sub>10</sub>)(1′,2′-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)] were determined by single crystal X-ray diffraction. |
format |
article |
author |
Ekaterina V. Bogdanova Marina Yu. Stogniy Kyrill Yu. Suponitsky Igor B. Sivaev Vladimir I. Bregadze |
author_facet |
Ekaterina V. Bogdanova Marina Yu. Stogniy Kyrill Yu. Suponitsky Igor B. Sivaev Vladimir I. Bregadze |
author_sort |
Ekaterina V. Bogdanova |
title |
Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide) |
title_short |
Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide) |
title_full |
Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide) |
title_fullStr |
Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide) |
title_full_unstemmed |
Synthesis of Boronated Amidines by Addition of Amines to Nitrilium Derivative of Cobalt Bis(Dicarbollide) |
title_sort |
synthesis of boronated amidines by addition of amines to nitrilium derivative of cobalt bis(dicarbollide) |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/4446a89e599541dca77225f973a79b5b |
work_keys_str_mv |
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