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Xiya Luo Liangliang Wang Lin Peng Jianfei Bai Lina Jia Guangyun He Fang Tian Xiaoying Xu Lixin Wang 《中国化学》2012,30(5):1185-1188
The enantioselective double Michael reaction of N‐Boc‐3‐nonsubstitued oxindoles with dienones catalyzed by chiral monoimide protected cyclohexane‐1,2‐diamines was developed. A wide range of optically active spirocyclic oxindoles were obtained up to 98% yield and up to 89% ee. 相似文献
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Aryl amines undergo smooth annulation with O-phenylpropynyl sugar aldehyde in the presence of the Ph3PAuCl (10 mol %)/AgSbF6 (10 mol %) catalytic system to afford the corresponding tetrahydro-3aH-spiro[[1,3]dioxolo[4″,5″:4′,5′]furo[3′,2′:5,6]pyrano[4,3-b]quinoline-2,1′-cyclohexane] derivatives in good yields and selectivity. 相似文献