Novel synthesis of 2H-3,1-benzoxazine de
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Jia-Rong Li; Shu-Ling Ma; Yong-Jiang Sun; Xiao-Jie Wei; Zhi-Ming Zhou
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Article
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2006
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Journal of Heterocyclic Chemistry
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English
โ 528 KB
## Abstract magnified image On heating of the 2โaminoโ5โnitrobenzonitrile **1** with cyclohexanone **2a** in the presence of catalyst, the novel compound 6โnitrospiro[3,1โbenzoxazineโ2,1โฒโcyclohexan]โ4(1__H__)โimine **5a** was formed. Also, reaction of **1** with cyclopentanone **2b** or cyclohept