920334-57-2Relevant academic research and scientific papers
Synthesis of functionalized 3-isochromanones: Via metal-free intramolecular alkoxylation-initiated cascade cyclization
Zhang, Ying-Qi,Zhu, Xin-Qi,Xu, Yin,Bu, Hao-Zhen,Wang, Jia-Le,Zhai, Tong-Yi,Zhou, Jin-Mei,Ye, Long-Wu
supporting information, p. 3023 - 3028 (2019/06/18)
A metal-free intramolecular alkoxylation-initiated cascade cyclization of allyl ether-tethered ynamides has been developed. Various highly functionalized 3-isochromanones can be obtained in generally good to excellent yields under mild reaction conditions
Concise stereoselective synthesis of oxaspirocycles with 1-tosyl-1,2,3-triazoles: Application to the total syntheses of (±)-tuberostemospiroline and (±)-stemona-lactamr
Fu, Junkai,Shen, Hongjuan,Chang, Yuanyuan,Li, Chuangchuang,Gong, Jianxian,Yang, Zhen
supporting information, p. 12881 - 12888 (2015/03/30)
A 4-substituted-1-tosyl-1,2,3-triazole-based stereoselective synthesis of structurally diverse oxaspirocycles is reported. The synthesis involves Rh-catalyzed loss of nitrogen from 4-substituted-1-tosyl-1,2,3-triazoles, Grignard reaction, and a ring-closing metathesis reaction as key steps. By employing readily available and stable 4-substituted-1-tosyl-1,2,3-triazoles as surrogates of diazo compounds and nitrogen sources, two types of oxaspirocycles were obtained. The latter compounds, which contain adjacent nitrogen stereocenters, could serve as the core structures of many natural products. This chemistry has been successfully applied to the total syntheses of (±)-tuberostemospiroline and (±)-stemona-lactamR.
NOVEL HETEROCYCLIDENE ACETAMIDE DERIVATIVE
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Page/Page column 108, (2010/11/30)
A compound represented by formula (I'): (wherein m, n, and p each represent 0 to 2; q represents 0 or 1; R1 represents halogen, a hydrocarbon group, a heterocyclic group, an alkoxy group, an alkoxycarbonyl group, a sulfamoyl group, a CN group,
Novel Heterocyclidene Acetamide Derivative
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Page/Page column 71, (2008/12/09)
A compound represented by formula (I′): (wherein m, n, and p each represent 0 to 2; q represents 0 or 1; R1 represents halogen, a hydrocarbon group, a heterocyclic group, an alkoxy group, an alkoxycarbonyl group, a sulfamoyl group, a CN group,
