tropylium tetrafluoroborate 、 bis-(2,2-dinitro-ethoxy)-methane; dipotassium salt 以
水 为溶剂,
以100%的产率得到7-[2-[(2-cyclohepta-2,4,6-trien-1-yl-2,2-dinitroethoxy)methoxy]-1,1-dinitroethyl]cyclohepta-1,3,5-triene
参考文献:
名称:
Tropylation and pyrylation of salts of aliphatic mono-, di-, and trinitro compounds
摘要:
We have studied the reactions of salts of nitroalkanes with tropylium and 2,6-diphenylpyrylium salts leading to products of C-tropylation and C-pyrylation of the corresponding anions. The only exception is the salt of cyanodinitromethane, which is not tropylated. Splitting off of a HNO2 molecule from the products of tropylation of nitroalkane anions to prepare nitroheptafulvenes was unsuccessful.