Kawabata, Tomonori;Kato, Masaki;Mizugaki, Tomoo;Ebitani, Kohki;Kaneda, Kiyotomi published 《Highly efficient deprotection of acetals by titanium cation-exchanged montmorillonite as a strong solid acid catalyst》. The research results were published in《Chemistry Letters》 in 2003.HPLC of Formula: 2235-01-0 The article conveys some information:
Deprotection of various kinds of acetals proceeded efficiently in the presence of Ti4+-exchanged montmorillonite as a recyclable strong solid acid catalyst. Other metal-exchanged montmorillonites were also used in deprotection of dimethoxydiphenylmethane. To complete the study, the researchers used Dimethoxydiphenylmethane (cas: 2235-01-0) .
Dimethoxydiphenylmethane is one of ethers-buliding-blocks. Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. HPLC of Formula: 2235-01-0 The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.
Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem