Deprotection of Acetals and Silyl Ethers Using Some ?-Acceptors

Article abstract of DOI:10.1246/bcsj.67.290

Hydrolysis of dodecanol dimethyl acetal and dodecyl silyl ethers in MeCN-H2O was examined using a catalytic silyl amount of ?-acceptors such as 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), tetracyanoethylene (TCNE), 7,7,8,8-tetracyanoquinodimethane (TCNQ), 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (TCNQF4), and chloranil (CA).Cleavage of dodecyl triethylsilyl ether with TCNQ and CA was caused by room light.By application of DDQ-catalyzed deprotection of acetals to hydrolysis of tetrahydropyranyl ethers, the corresponding alcohols were obtained in quantitative yields.