How is [4-[[4-(diethylamino)phenyl]-[4-(ethylamino)-2-naphthyl]methylene]cyclohexa-2,5-dien-1-ylidene]-diethyl-ammonium;4-oxido-1,3-dioxa-2$l^{6}-molybda-4$l^{7}-tungstacyclobutane 2,2,4,4-tetraoxide (CAS: 1325-87-7) typically synthesized?

This compound is typically synthesized through the condensation of a molybdenum or tungsten complex with a cyclohexadienylidene derivative, followed by the substitution of diethylammonium groups. The reaction is usually performed under an inert atmosphere, and the use of a catalyst can enhance the reaction selectivity and yield. Detailed synthesis protocols can be found in relevant chemical literature.