Ozonolysis of Morita-Baylis-Hillman adducts originated from aromatic aldehydes:: an expeditious diastereoselective approach for the preparation of α,β-dihydroxy-esters
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作者:
Abella, Carlos A. M.
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Unicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, BrazilUnicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, Brazil
Abella, Carlos A. M.
[1
]
Rezende, Patricia
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Unicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, BrazilUnicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, Brazil
Rezende, Patricia
[1
]
de Souza, Michele F. Lino
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Unicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, BrazilUnicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, Brazil
de Souza, Michele F. Lino
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]
Coelho, Fernando
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Unicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, BrazilUnicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, Brazil
Coelho, Fernando
[1
]
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[1] Unicamp IQ DQO, Lab Synth Nat Prod & Drug, BR-13084971 Campinas, SP, Brazil
We disclose herein ozonolysis of Morita-Baylis-Hillman adducts originated from aromatic aldehydes. This efficient reaction provides alpha-ketoesters with different substitution patterns on the aromatic ring. Diastercoselective reduction of the corresponding alpha-ketoester obtained in the oxidative cleavage step provides alpha,beta-dihydroxy-esters with excellent degree of anti diastereoselection. The method is simple and easy to execute and is therefore a valuable alternative to prepare either alpha-ketoesters or alpha-dihydroxy-esters. (c) 2007 Elsevier Ltd. All rights reserved.