Acetalation of Pentaerithritol Catalyzed by an Al-Pillared Saponite
作者:V. Kannan、K. Sreekumar、A. Gil、M. A. Vicente
DOI:10.1007/s10562-011-0572-8
日期:2011.8
Acetalation of pentaerithritol has been carried out in the presence of an Al-pillared saponite. Several carbonyl compounds were used, including aldehydes and ketones. Yields between 72 and 93% were obtained in all cases, except in the case of veratraldehyde where the carbonyl group was blocked. The high conversion could be explained by diffusion effects of intermediates and electronic effects between the reactants in the transition state. The catalyst was found to be active after three cycles.
MICROWAVE-ASSISTED ACETALIZATION OF PENTAERYTHRITOL CATALYZED BY 12-TUNGSTOPHOSPHORIC ACID
作者:Yanqing Peng、Gonghua Song、Xuhong Qian
DOI:10.1081/scc-100108222
日期:2001.1.1
Efficient conversion of carbonyl compounds and pentaerythritol to corresponding diacetals in the presence of 12-tungstophosphoric acid under microwave irradiation is described.
Jin, Tongshou; Yang, Mina; Wang, Xin, Journal of Chemical Research, 2004, # 3, p. 203 - 205