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Selective ortho C−H Cyanoalkylation of (Diacetoxyiodo)arenes through [3,3]‐Sigmatropic Rearrangement.
- Source :
-
Angewandte Chemie International Edition . 7/16/2018, Vol. 57 Issue 29, p9078-9082. 5p. - Publication Year :
- 2018
-
Abstract
- Abstract: We herein report a robust catalyst‐free cross‐coupling between ArI(OAc)2 and α‐stannyl nitriles, aided by TMSOTf. The transformation introduces a cyanoalkyl group to the ortho position of ArI(OAc)2 and simultaneously reduces the aryl iodine(III) to iodide, thus providing α‐(2‐iodoaryl) nitrile as the product. This transformation could be completed within 5 min at −78 °C and features superb functional‐group tolerance and efficient scalability. DFT calculations indicate that the formation of a ketenimine(aryl)iodonium intermediate and subsequent [3,3]‐sigmatropic rearrangement are involved as key steps. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CATALYSTS
*NITRILES
*CHEMICAL amplification
*IODIDES
*SIGMATROPIC rearrangements
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 57
- Issue :
- 29
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 130646410
- Full Text :
- https://doi.org/10.1002/anie.201803455