Stereoselectivity in the amination of chiral cyclohex-3-en-1-one ketals
摘要:
Optically active cyclohex-3-en-1-one ketals by photolysis of N(3)CO(2)Et or N3C(OEt)NMs or by CaO induced alpha-elimination of NsONHCO(2)Et give diastereomeric aziridines (up to 72% yields, up to 60% d.e.). A simple HPLC separation allows to obtain practically pure aziridines. The conversion of the main product to the ketal of (R)-N-(ethoxycarbonyl)-beta-aminocyclohexanone is also reported and a further oxidation directly gives a derivative of(R)-2-aminoadipic acid. (C) 1997 Elsevier Science Ltd.
Stereoselectivity in the amination of chiral cyclohex-3-en-1-one ketals
摘要:
Optically active cyclohex-3-en-1-one ketals by photolysis of N(3)CO(2)Et or N3C(OEt)NMs or by CaO induced alpha-elimination of NsONHCO(2)Et give diastereomeric aziridines (up to 72% yields, up to 60% d.e.). A simple HPLC separation allows to obtain practically pure aziridines. The conversion of the main product to the ketal of (R)-N-(ethoxycarbonyl)-beta-aminocyclohexanone is also reported and a further oxidation directly gives a derivative of(R)-2-aminoadipic acid. (C) 1997 Elsevier Science Ltd.
Stereoselectivity in the amination of chiral cyclohex-3-en-1-one ketals
作者:Stefania Fioravanti、Giuseppe Luna、Lucio Pellacani、Paolo A. Tardella
DOI:10.1016/s0040-4020(97)00161-0
日期:1997.3
Optically active cyclohex-3-en-1-one ketals by photolysis of N(3)CO(2)Et or N3C(OEt)NMs or by CaO induced alpha-elimination of NsONHCO(2)Et give diastereomeric aziridines (up to 72% yields, up to 60% d.e.). A simple HPLC separation allows to obtain practically pure aziridines. The conversion of the main product to the ketal of (R)-N-(ethoxycarbonyl)-beta-aminocyclohexanone is also reported and a further oxidation directly gives a derivative of(R)-2-aminoadipic acid. (C) 1997 Elsevier Science Ltd.