9-hexahydro-2′,3′,5′-triaryl spiro[benzocycloheptene-6(5H),4′(4H-pyrazol)-5-ones (5). X-ray crystallographic analysis was carried out for compound 5b. It was found that the regioselectivity of the produced compounds was altered based on changing solvent type.
在苯和
氯仿中研究了6-芳基亚甲基-6,7,8,9-四氢-5 H-苯并
环庚烯-5-酮(1)与亚
硝胺3的1,3-偶极环加成反应。反应产物为2',4',6,7,8,9-六氢-2',4',5'-三芳基螺[苯并
环庚烯-6(5 H),3'(3 H-
吡唑)-5 -一个(4)或2',3',6,7,8,9-六氢-2',3',5'-三芳基螺[苯并
环庚烯-6(5 H),4'(4 H-
吡唑) -5-个(5)。对化合物5b进行X射线晶体学分析。发现所产生的化合物的区域选择性根据改变的溶剂类型而改变。