Chemistry of organosilicon compounds. 148. 3-Chloro-2-(trimethylsiloxy)-1-propene as an electrophilic acetonyl equivalent. Novel regioselective synthesis of 1,4-dicarbonyl compounds
Addition of 2-nitropropene to the chiral imine derived from 2-methylcyclopentanone and (S)-1-phenylethylamine furnished the expected Michael adduct. The latter compound was then efficiently converted into (R)-pentalenone through a Nef reaction. Condensation of the enamino ester derived from 2-carbethoxycyclopentanone and (S)-1-phenylethylamine with 1-nitropropene gave with excellent diastereo- and enantioselectivity the corresponding Michael adduct. (C) 1999 Elsevier Science Ltd. All rights reserved.
Lui, Kon-Hung; Sammes, Michael P., Journal of the Chemical Society. Perkin transactions I, 1990, p. 457 - 468
作者:Lui, Kon-Hung、Sammes, Michael P.
DOI:——
日期:——
SYNTHESIS OF 1,4-DIKETONES FROM SILYL ENOL ETHERS AND NITROOLEFINS: 2-(2-OXOPROPYL)CYCLOHEXANONE