Quality Control of Dimethoxydiphenylmethane《Direct Transformation of Silica from Natural Resources to Form Tetramethoxysilane》 was published in 2020. The authors were Putro, Wahyu S.;Fukaya, Keisuke;Choi, Jun-Chul;Choi, Seong Jib;Horikoshi, Toshio;Sato, Kazuhiko;Fukaya, Norihisa, and the article was included in《Bulletin of the Chemical Society of Japan》. The author mentioned the following in the article:
A simple and practical method for direct synthesis of tetramethoxysilane (TMOS) from silica (SiO2) and methanol was achieved using a base catalyst and acetal as a dehydrant under carbon dioxide (CO2). The production of TMOS was strongly influenced by the kind of the acetal used, with 2,2-dimethoxypropane identified as the most effective dehydrant. Authors observed that the acetal used enabled the production of a high yield of di-Me carbonate (DMC), which promoted the TMOS production DMC is an intermediate product from the reaction of CO2 and methanol, which supported the SiO2 depolymerization process. When the reaction is conducted with 2,2-dimethoxypropane at 260° for 24 h, TMOS can be produced in up to 59% yield. For practical applications, the TMOS synthesis has been developed on a 250 mL and 1 L-scale reaction with constant yield (>50%) from various silica resources. The experimental procedure involved many compounds, such as Dimethoxydiphenylmethane (cas: 2235-01-0) .
The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom.Quality Control of Dimethoxydiphenylmethane
Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem