METHOD FOR PRODUCING TRANS-3,4- DI(SUBSTITUTED)TETRAHYDROTHIO-PHENES

摘要

FIELD: chemical industry. SUBSTANCE: present invention describes rubber vulcanization accelerators and addition agents to lubricating oils and fuels. Trans-3,4-dialkyl (aryl, alkenyl) tetrahydrothiophenes are prepared by reacting alkyl benzene, 4-vinyl cyclohex-1- ene with dialkylaluminium chloride of formula: R1@2AlCl wherein is Et, i-Bu and metallic magnesium in the presence of ZrCl4 at room temperature under argon atmosphere in tetrahydrofuran and subsequently adding elemental sulfur in three-fold excess amount with respect to organoaluminium compounds and maintaining reaction mixture at 80 C. Yield is no higher than 86%. EFFECT: more efficient preparation method. 1 tble