Abstract
Transesterification of dimethyl carbonate (DMC) with hydrogenated bisphenol A (HBPA) was studied over various organotin oxides under pressured condition without removal of by-producing methanol. Bu2SnO displayed higher activities in HBPA conversion and bis-methylcarbonate of hydrogenated bisphenol-A (BMHBPA) synthesis, and HBPA conversion and BMHBPA selectivity reached 97.4% and 84.0%. However, when Ph2SnO was used as catalyst, HBPA conversion and BMHBPA selectivity decreased to 81.5 and 37.7%. Catalyst steric hindrance significantly influenced HBPA conversion and BMHBPA formation, and π-d interaction between phenyl ring and Sn was unfavorable for the transesterification of HBPA with DMC. Moreover, the catalytic system was further optimized.
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Xia, R., Li, Z., Cheng, B. et al. The structure of organotin oxides playing a key role on the transesterification of dimethyl carbonate with hydrogenated bisphenol A. Korean J. Chem. Eng. 31, 427–430 (2014). https://doi.org/10.1007/s11814-013-0247-9
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DOI: https://doi.org/10.1007/s11814-013-0247-9