When the O-alkylation of monoallil ether of ethylene glycol by individual cis-and transisomers of 1,3-dihloropropenes obtained in high yields the corresponding unsymmetrical disconnected allilchlorallil esters. Shown that interaction of dichlorcarbenes with unsymmetrical unsymmetrical dialkenil glycol ethers under phase transfer catalysis leads to a sequential formation of the corresponding mono-and bis-gem-dichlorocyclopropyl derivative, here, according to results of kinetic analysis, allyl double bond is approximately 1.5-2 times more active chlorallil bond.

The analysis of mass-spectra obtained using electron impact ionization has revealed features of the mass spectrometric behavior of amines containing cyclopropane and 1,3-dioxolane fragments. The mass spectra of aminoacetales don't contain molecular ions, the main direction of decomposition is determined by the emission of 1,3-dioxole radical or alkyl substituent. The collapse of the molecular ions of amino-gem.4dichlorocyclopropanes characterized by loss of alkyl and dialkiloamino groups, the maximum intensity have ions containing gem.dichlorocyclopropane fragment.

Study of mass spectra of cyclic acetal derivatives of 1,1,1-trioxymethylpropane (ethriol)-5-ethyl5-hydroxymethyl-1,3-dioxane and their ethers, obtained by dissociative ionization method, showed that the main direction of the collapse of the molecular ion becomes of oxocyclobutyl fragment. At the same time, molecular ions of unsaturated ethers of 5-substituted-1,3-dioxanes lose alkenyl substituent. Ethers containing gem.dichlorocyclopropane group give fragmentation ion having cyclopropane structure.

The alkylation of phenol and 2,6-di-tert-butylphenol with alkenyl-gem-dichlorocyclopropanes in the presence of boron trifluoride etherate was studied. The products were obtained with a yield of 45–50% of the theoretical value. The structure of the products was determined by spectral methods.