研究了 3 ,5 二芳基 4,5 二氢异唑化合物 ( 1a～ 1e) ,1,4 二氢吡啶化合物 ( 3a～ 3c)和 1,3 ,5 三苯基 4,5 二氢吡唑化合物 ( 5 )分别在二铬酸氢四吡啶合镍 (II) [(Py) 4 Ni(HCrO4) 2 ]氧化下脱氢反应的结果 ;研究了在 [(Py) 4 Ni(HCrO4) 2 ]存在下 ,吡啶叶立德、喹啉叶立德或异喹啉叶立德分别和缺电子烯烃反应 ,一步法合成中氮茚衍生物 9a～ 9b ,11a～ 11b ,13的结果 .发现金属配合物氧化剂二铬酸氢四吡啶合镍 (II)可用于多类杂环化合物的脱氢芳构化 . The effects of 3,5-diaryl-4,5-dihydroisoxazole compounds (1a ~ 1e), 1,4-dihydropyridine compounds (3a ~ 3c) and 1,3,5 triphenyl 4,5-dihydropyridine (Py) 4 Ni (HCrO4) 2] were synthesized by the oxidation of tetrazolium dinitrate (II) [(Py) 4 Ni ], The reaction of pyridine ylide, quinoline ylide or isoquinoline ylide respectively with the electron-deficient alkene and the one-step synthesis of the indolizine derivatives 9a-9b, 11a-11b, and 13. The metal complex oxidant dichromic acid Hydrogen tetrapyridinium nickel (II) can be used for dehydroaromatization of many kinds of heterocyclic compounds.