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Synthesis of novel spiro(indolizine-pyrazole) derivatives via 1,3-dipolar cycloaddition of nitrilimine
被引:6
|作者:
Zhang, Shaowei
[1
]
Hu, Xiaolian
[1
]
Tao, Hongwen
[1
]
Liu, Haochong
[1
]
Li, Xiaofang
[1
]
机构:
[1] Hunan Univ Sci & Technol, Key Lab Theoret Organ Chem & Funct Mol, Minist Educ, Sch Chem & Chem Engn, Xiangtan 411201, Hunan, Peoples R China
基金:
中国国家自然科学基金;
关键词:
indolizine;
spiroheterocycle;
1,3-dipolar cycloaddition;
nitrilimine;
BIOLOGICAL EVALUATION;
INDOLIZIDINE;
DESIGN;
AGENTS;
D O I:
10.3184/174751917X15064232103100
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The 1,3-dipolar cycloaddition of nitrilimine, generated in situ from N'-phenylbenzohydrazonoyl chloride and triethylamine, to 7-arylmethylidene-6,7-dihydroindolizin-8(5H)-one afforded novel 4'-aryl-2', 5'-diphenyl-2', 4', 5,6-tetrahydro-8H-spiro(indolazine-7,3'-pyrazol)-8-ones in moderate yields. The structures of all the products were characterised thoroughly by NMR, infrared spectroscopy and HRMS. The structure and stereochemistry was confirmed by X-ray diffraction analysis.
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页码:608 / 610
页数:3
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