Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Química de México
2017
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=47552182002 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866558165706866688 |
|---|---|
| author | Jesús Campos |
| author_facet | Jesús Campos |
| contents | Synthesis and Reactivity Studies of Cationic Ir(III) Alkylidines. a-Hydride Abstraction Reactions Jesús Campos Ernesto Carmona Multidisciplinaria (Ciencias Naturales y Exactas) iridium Alkylidene C coupling metalacycle hydride abstraction The chemistry of late transition metal alkylidenes [M=CR2], where R is H a hydrocarbyl group, have attracted widespread attention although mainly with reference to complexes of metals in low oxidation state. We focus in this paper on reactions based on electrophilic attacks by Ph3C+ that allow either isolation of stable cationic Ir(III) alkylidenes, considerably more attractive than well-known Ir(I) counterparts, or the generation of very reactive variants that experience fast migratory insertion into existing Ir-C and Ir-H sigma bonds. The present studies are based on (η5-C5Me5)Ir(III) complexes that bear a cyclometalated PMeXyl2 ligand (Xyl = 2,6-Me2C6H3). The contribution of different monoanionic ligands (chloride, alkyl or hydride) to either stabilize the Ir=CR2 linkage or provide facile reactivity routes has been investigated, including the use of various deuterium isotopologues of the iridium complex precursors. 2017 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47552182002 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.2 Vol.61 |
| format | Artículo científico |
| id | redalyc_47552182002 |
| language | en |
| publishDate | 2017 |
| publisher | Sociedad Química de México |
| spellingShingle | Synthesis and Reactivity Studies of Cationic Ir(III) Alkylidines. a-Hydride Abstraction Reactions Jesús Campos Multidisciplinaria (Ciencias Naturales y Exactas) iridium Alkylidene C coupling metalacycle hydride abstraction Synthesis and Reactivity Studies of Cationic Ir(III) Alkylidines. a-Hydride Abstraction Reactions Jesús Campos Ernesto Carmona Multidisciplinaria (Ciencias Naturales y Exactas) iridium Alkylidene C coupling metalacycle hydride abstraction The chemistry of late transition metal alkylidenes [M=CR2], where R is H a hydrocarbyl group, have attracted widespread attention although mainly with reference to complexes of metals in low oxidation state. We focus in this paper on reactions based on electrophilic attacks by Ph3C+ that allow either isolation of stable cationic Ir(III) alkylidenes, considerably more attractive than well-known Ir(I) counterparts, or the generation of very reactive variants that experience fast migratory insertion into existing Ir-C and Ir-H sigma bonds. The present studies are based on (η5-C5Me5)Ir(III) complexes that bear a cyclometalated PMeXyl2 ligand (Xyl = 2,6-Me2C6H3). The contribution of different monoanionic ligands (chloride, alkyl or hydride) to either stabilize the Ir=CR2 linkage or provide facile reactivity routes has been investigated, including the use of various deuterium isotopologues of the iridium complex precursors. 2017 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47552182002 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.2 Vol.61 |
| title | Synthesis and Reactivity Studies of Cationic Ir(III) Alkylidines. a-Hydride Abstraction Reactions |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) iridium Alkylidene C coupling metalacycle hydride abstraction |
| url | https://www.redalyc.org/articulo.oa?id=47552182002 |