Triarylsilylmethylmetallic reagents have been prepared by several routes: metalation; addition of phenyllithium to vinyltriphenylsilane; direct synthesis; and by halogen–metal exchange. The latter method is highly superior as regards both generality of application and yields. Dibromomethylsilanes undergo halogen-metal exchange at −78°, and reaction of the product with hydrogen bromide serves as a valuable way of converting geminal dibromides to monobromides. The organometallic reagents have been characterized in several ways, in particular by carbonation to give the related carboxylic acid.
三芳基硅甲基金属试剂已通过几种途径制备:金属化;苯基锂与乙烯三苯基硅烷的加成;直接合成;以及卤素金属交换。后一种方法在适用性和产率方面都具有极高的优势。二溴甲基硅烷在-78°下发生卤素金属交换,产物与氢溴酸的反应可作为将伪二溴化物转化为单溴化物的有价值途径。这些有机金属试剂已通过多种方式进行表征,特别是通过碳酸化得到相关的羧酸。