A one-pot Knoevenagel reaction/asymmetric epoxidation/domino ring-opening cyclization (DROC) has been developed from commercial aldehydes, (phenylsulfonyl)acetonitrile, cumyl hydroperoxide, 1,2-ethylendiamines, and 1,2 ethanol amines to provide 3-aryl/alkyl piperazin-2-ones and morpholin-2-ones in yields of 38 to 90% and up to 99% ee. Two out of the three steps are stereoselectively catalyzed by a quinine derived urea. The sequence has been applied for a short enantioselective entry to a key intermediate, in both absolute configurations, involved in the synthesis of the potent antiemetic drug Aprepitant.
机构:
M V Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
Russian Acad Sci, A V Topchiev Inst Petrochem Synth, Moscow 119991, RussiaM V Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
Shaputkin, Evgeny D.
Nifant'ev, Ilya E.
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M V Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
Russian Acad Sci, A V Topchiev Inst Petrochem Synth, Moscow 119991, RussiaM V Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
Nifant'ev, Ilya E.
Ivchenko, Pavel, V
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M V Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
Russian Acad Sci, A V Topchiev Inst Petrochem Synth, Moscow 119991, RussiaM V Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
机构:
Shangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R ChinaShangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R China
Meng, Tuanjie
Liu, Lantao
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Shangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R ChinaShangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R China
Liu, Lantao
Jia, Huiyi
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Shangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R ChinaShangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R China
Jia, Huiyi
Ren, Lifeng
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Shangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R ChinaShangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R China
Ren, Lifeng
Feng, Cuilan
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Shangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R ChinaShangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R China
Feng, Cuilan
Wang, Xiaojuan
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Shangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R ChinaShangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R China
Wang, Xiaojuan
Zhao, Wenxian
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Shangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R ChinaShangqiu Normal Univ, Coll Chem & Chem Engn, Key Lab New Organ Mat Synth, Shangqiu 476000, Peoples R China
机构:
Tunis El Manar Univ, Fac Sci, Lab Organ & Organometall Chem, Tunis 2092, TunisiaTunis El Manar Univ, Fac Sci, Lab Organ & Organometall Chem, Tunis 2092, Tunisia
Arfaoui, Aicha
Beltaief, Imen
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Tunis El Manar Univ, Fac Sci, Lab Organ & Organometall Chem, Tunis 2092, TunisiaTunis El Manar Univ, Fac Sci, Lab Organ & Organometall Chem, Tunis 2092, Tunisia
Beltaief, Imen
Amri, Hassen
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Tunis El Manar Univ, Fac Sci, Lab Organ & Organometall Chem, Tunis 2092, TunisiaTunis El Manar Univ, Fac Sci, Lab Organ & Organometall Chem, Tunis 2092, Tunisia