Palladium-catalyzed synthesis of N-aryl- and N-heteroaryl-aza-crown ethers via cross-coupling reactions of aryl- and heteroaryl bromides with aza-crown ethers
Palladium(0)-catalyzed cross-coupling reactions of electron deficient aryl- and heteroaryl bromides with aza-crown ethers of various ring sizes are described. The catalyst system Pd(OAc)(2)/PPh3 gave best results for cross coupling reactions of macrocyclic aza-crown ethers with electron poor aryl bromides.
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China Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China
Univ Penn, Dept Chem, Roy & Diana Vagelos Labs, Philadelphia, PA 19104 USAChina Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China
Mao, Jianyou
Jia, Tiezheng
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Univ Penn, Dept Chem, Roy & Diana Vagelos Labs, Philadelphia, PA 19104 USAChina Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China
Jia, Tiezheng
Frensch, Gustavo
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Univ Penn, Dept Chem, Roy & Diana Vagelos Labs, Philadelphia, PA 19104 USAChina Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China
Frensch, Gustavo
Walsh, Patrick J.
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Univ Penn, Dept Chem, Roy & Diana Vagelos Labs, Philadelphia, PA 19104 USAChina Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China