Sulfur ylides. 4. Cyclopropanation of fulvenes by ethyl (dimethylsulfuranylidene)acetate under interphase catalysis conditions
摘要:
The reaction was studied of fulvenes with ethyl (dimethylsulfuranylidene)acetate generated under interphase catalysis conditions from the sulfonium salt [MeS+CH2-CO2Et)]Br- by the action of 85% KOH in the presence of triethylbenzylammonium chloride.