Hamada, Nao;Kazahaya, Kiyoshi;Shimizu, Hisashi;Sato, Tsuneo published 《An efficient and versatile procedure for the synthesis of acetals from aldehydes and ketones catalyzed by lithium tetrafluoroborate》. The research results were published in《Synlett》 in 2004.SDS of cas: 2235-01-0 The article conveys some information:
Acetals, e.g., I, were obtained, in good yields, by treatment of aldehydes and ketones with trialkyl orthoformate, and the corresponding alc., in the presence of a catalytic amount of lithium tetrafluoroborate. Due to the mild reaction conditions, this method was compatible with acid-sensitive substrates. And Dimethoxydiphenylmethane (cas: 2235-01-0) was used in the research process.
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. SDS of cas: 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