FIELD: chemistry.
SUBSTANCE: invention relates to a method for synthesis of novel 2,3-dihydro[1,3]tellurazolium chlorides of general formula 
, where R1 is alkyl or phenyl; R2 is alkyl, phenyl or hydrogen; or R1+R2 is cycloalkyl. The method involves reaction of olefin with 2-pyridine tellurenyl chloride in equimolar ratio in dichloromethane medium.
EFFECT: method can be used in fine organic synthesis, in production of medicinal agents and biologically active substances.
1 cl, 2 ex
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