Glycosides of hydroxylamine derivatives: I. Phase transfer synthesis and the study of the influence of glucosaminides of isatine 3-oximes on bacterial luminescence
作者:V. O. Kuryanov、T. A. Chupakhina、A. A. Shapovalova、A. M. Katsev、V. Ya. Chirva
DOI:10.1134/s1068162011020105
日期:2011.3
bacterial luminescence inhibition test with marine luminescent bacteria Photobacterium leiognathi Sh1. The relationship of the structures of the isatin N-substituent and the 5-indolyl substituent and the glycoside capacity to suppress bacterial luminescence was analyzed.
Organocatalytic domino sequence to asymmetrically access spirocyclic oxindole-α-methylene-γ-lactams
作者:Zhen-Zhen Xie、Yu-Lun Qian、Yu Zheng、Qing-Lan Zhao、Jun-An Xiao、Hao-Yue Xiang、Kai Chen、Hua Yang
DOI:10.1016/j.tet.2021.132163
日期:2021.6
An asymmetric allylic alkylation-lactamization dominosequence of 3-aminooxindoles with Morita-Baylis-Hillman carbonates catalyzed by quinidine derivative (β-ICD) was developed. And a series of chiral spirocyclic oxindole-α-methylene-γ-lactams have been facilely prepared in good yields and stereoselectivities. This developed protocol would broaden the utilization of Morita-Baylis-Hillman carbonates
Asymmetric Conjugate Addition of Ethylene Sulfonyl Fluorides to 3-Amido-2-oxindoles: Synthesis of Chiral Spirocyclic Oxindole Sultams
作者:Jie Chen、Bao-qin Huang、Zeng-qing Wang、Xue-jing Zhang、Ming Yan
DOI:10.1021/acs.orglett.9b03911
日期:2019.12.6
An enantioselective conjugateaddition of ethylene sulfonyl fluorides to 3-amido-2-oxindoles has been developed. Quinine-derived squaramides were identified as efficient catalysts. A series of spirocyclic oxindole sultams were prepared with excellent yields and enantioselectivities. A reaction mechanism via bifunctional activation was proposed.