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Copper-catalyzed C–N coupling reactions of aryl halides with α-amino acids under focused microwave irradiation
✍ Scribed by Nasani Narendar; Sivan Velmathi
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- French
- Weight
- 186 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
We have developed an efficient method for the preparation of enantiopure N-aryl-a-amino acids via copper-catalyzed N-arylation of a-amino acids and aryl halides under microwave irradiation. This protocol only needs less than 30 min to obtain the products, which are far superior to those obtained under conventional heating.
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## Abstract A rapid and efficient cross‐coupling reaction of sodium tetraphenylborate with aryl bromides was carried out in water at 120 °C in the presence of a polymer‐supported palladium catalyst and potassium carbonate under focused microwave irradiation. All four phenyl groups of sodium tetraph