A series of proline-based amino pyridine dipeptide organocatalysts was synthesized and applied in direct asymmetric intermolecular aldol reaction. These catalysts showed good solubility in organic solvents, good yields (73%-97%) and enantioselectivitives(74%-94%). Among them, dipeptide organocatalyst(2) was found to be the most efficient one for the asymmetric aldol reaction between cyclohexanone and 4-nitrobeznaldehyde. After optimizing the catalytic reaction conditions, we found that the catalyst showed high yield(97%), enantioselectivity(e.e., up to 92%) and anti-diastereoselectivity(up to 95:5) at mild room temperature without any additives.
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Univ Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, ItalyUniv Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
De Nisco, Mauro
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Pedatella, Silvana
Ullah, Hidayat
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Quaid I Azam Univ, Dept Chem, Islamabad 45320, PakistanUniv Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
Ullah, Hidayat
Zaidi, Javid H.
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Quaid I Azam Univ, Dept Chem, Islamabad 45320, PakistanUniv Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
Zaidi, Javid H.
Naviglio, Daniele
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Univ Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, ItalyUniv Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
Naviglio, Daniele
Ozdamar, Ozgur
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Ondokuz Mayis Univ, Fen Edebiyat Fak, Kimya Bolumu, TR-55200 Samsun, TurkeyUniv Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
Ozdamar, Ozgur
Caputo, Romualdo
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Univ Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, ItalyUniv Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
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Lanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R ChinaLanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R China
Jia, Ya-Ning
Wu, Feng-Chun
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Lanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R ChinaLanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R China
Wu, Feng-Chun
Ma, Xiao
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Lanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R ChinaLanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R China
Ma, Xiao
Zhu, Gong-Jian
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Lanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R ChinaLanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R China
Zhu, Gong-Jian
Da, Chao-Shan
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Lanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R China
Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R ChinaLanzhou Univ, Inst Biochem & Mol Biol, Sch Life Sci, Lanzhou 730000, Peoples R China