Cobalt-catalyzed addition of arylzinc reagents to norbornene derivatives through 1,4-cobalt mgration
A cobalt–diphosphine catalyst promotes the addition of an arylzinc reagent to a norbornene derivative to afford o-(2-exo-norbornyl)arylzinc species. This “migratory arylzincation” reaction is considered to involve insertion of norbornene into an arylcobalt species, alkyl-to-aryl 1,4-cobalt migration...
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| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/103106 http://hdl.handle.net/10220/24361 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | A cobalt–diphosphine catalyst promotes the addition of an arylzinc reagent to a norbornene derivative to afford o-(2-exo-norbornyl)arylzinc species. This “migratory arylzincation” reaction is considered to involve insertion of norbornene into an arylcobalt species, alkyl-to-aryl 1,4-cobalt migration, and transmetalation between the resulting o-(2-exo-norbornyl)arylcobalt species and the arylzinc reagent. The o-(2-exo-norbornyl)arylzinc species can be intercepted by common organic electrophiles under copper or palladium catalysis. |
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