Abstract: The present invention discloses a technique for reacting a first liquid chemical compound with a second liquid chemical compound which comprises (1) supporting the first liquid chemical compound on a solid support; (2) subsequently bringing the solid support into contact with the second liquid chemical compound; and (3) allowing the first chemical compound to react with the second chemical compound in the presence of a phase transfer catalyst to produce a reaction product. This technique is particularly useful in the synthesis of sulfur containing organosilicon compounds of the formula Z-Alk-Sn-Alk-Z wherein Z is selected from the group consisting of wherein R1 is an alkyl group of 1 to 4 carbon atoms, cyclohexyl or phenyl; wherein R2 is an alkoxy group of 1 to 8 carbon atoms or a cycloalkoxy group of 5 to 8 carbon atoms; wherein Alk is a divalent hydrocarbon of 1 to 18 carbon atoms; and wherein n is an integer of 2 to 8.