Abstract: A method of reacting compounds is described. The method can include flowing a first liquid comprising a first compound into an inlet of a conduit and through a fiber bundle comprising a plurality of fibers extending lengthwise in the conduit, and flowing, while flowing the first liquid, a second liquid comprising a second compound having at least one silicon atom into the inlet of the conduit and through the fiber bundle. The method can further include reacting the first compound and the second compound within the fiber bundle to produce a third compound having at least one silicon atom different from the first and second compounds, and flowing the third compound out an outlet of the conduit.