The invention relates to a process for the preparation of a compound of formula, according to the following scheme; wherein the various substituants are as defined in the description. The system includes a mobility manager that includes a database that stores the alias of terminals on other platforms for addressing from a first platform. A temperature of the dual frequency liquid crystal spatial light modulator can be sensed to facilitate temperature control andor temperature compensation, so as to enhance the accuracy associated with use of the crossover frequency used to control the dual frequency liquid crystal spatial light modulator. A sixth step repeats said third to fifth steps until the tri-junction becomes the melting point of the single crystal. The system manages a plurality of the worktravel sequences on the same worktravel sequence screen. If a copy of the message is only received via one of the first port or the second port, the received copy of the message is selected.