A novel method for the synthesis of unsaturated amino alcohols and amino acids, as well as C-quaternary vinylglycinols has been developed. A convenient approach to 2-trichloromethyl-4-vinyloxazoline and its ring cleavage reactions with various nucleophiles have been demonstrated. Novel approach for the synthesis of N-tosyliminocarbonates has been established their synthetic application was demonstrated. The thesis is presented as a set of thematically unified scientific publications on C-heteroatom bond formation in Lewis acid catalysed nucleophilic allylic substitution of trichloroacetimidate group. It consists of 4 publications in peer-reviewed journals that are included in international scientific databases and 1 manuscript. The publications are written in English and constitute a total of 34 pages.