Copper catalyzed cyclopropanation of 1,2,3,4-tetrahydropyridin-2-ones with trimethylsilyldiazomethane: A facile and selective synthesis of 2-aza-3-oxobicyclo[4.1.0] heptanes

被引:0
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作者
Sharma, VB [1 ]
Jain, SL [1 ]
Sain, B [1 ]
机构
[1] Indian Inst Petr, Chem & Biotechnol Div, Dehra Dun 248005, Uttar Pradesh, India
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中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The reactions of a series of 1,2,3,4-tetrahydropyridin-2-ones with trimethylsilyldiazomethane using catalytic amounts of copper(II) triflate in refluxing 1,2-dichloroethane yielded exclusively 3-oxo-2-azabicyclo[4.1.0]-heptanes in good yields. The application of ultrasonic radiation enhanced the reaction rate and allowed the reactions to be conducted at room temperature.
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页码:475 / 481
页数:7
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