An Efficient and Highly Stereoselective Synthesis of <i>CIS</i>-1-Acetyl-2-Aryl-6,6-Dimethyl-5,7-Dioxo-Spiro-[2,5]-4,8-Octadiones and β,γ-<i>Trans</i>-β-Acetyl-γ-Aryl-Butyrolactones
作者:Weiguo Cao、Weiyu Ding、Yali Chen、Jinsen Gao
DOI:10.1080/00397910008087082
日期:2000.12.1
Acetylmethyltriphenylarsonium bromide 6 in the presence of potassium carbonate and trace water reacted with 2,2-dimethyl-1,3-dioxa-5-substituted-benzylidene-4,6-dione 2 at room temperature to give cyclopropane derivatives cis-1-acetyl-2-aryl-6,6-dimethyl-5,7-dioxo-spiro-[2,5]-4,8-octadiones 7 (X=p-CH3, p-Cl, H, p-NO2) or beta,gamma -trans-beta -acetyl-gamma -aryl-gamma -butyrolactones 8 (X=p-CH3O, p-N(CH3)(2), 3',4'-OCH2O-) with good yield and high stereoselectivity.
Couquelet; Taoufik; Couquelet, European Journal of Medicinal Chemistry, 1983, vol. 18, # 4, p. 301 - 305
作者:Couquelet、Taoufik、Couquelet、et al.
DOI:——
日期:——
Taoufik, J.; Couquelet, J. D.; Couquelet, J. M., Journal of Heterocyclic Chemistry, 1984, vol. 21, p. 305 - 310
作者:Taoufik, J.、Couquelet, J. D.、Couquelet, J. M.、Carpy, A.