Effect of substitution and temperature on the reactivity of bicyclo[3.1.0]hex-1-ene system

Anions of allylmeldrumʹs acids reacted with phenyl(propynyl)iodonium salt to produce bicyclo[3.1.0]hex-1-enes as the reactive intermediates through cyclopropanation reaction to yield various dimerization products. Depending on the substitution pattern on the intermediates, various dimeric products were obtained.