NURBERDYEV, R.;YAZKULIEV, O.;XEKIMOV, YU. K.;ZLOTSKIJ, S. S.;RAXMANKULOV,+, IZV. AN TSSR. CEP. FIZ.-TEXN., XIM. I GEOL. N.,(1990) N, S. 101-103
作者:NURBERDYEV, R.、YAZKULIEV, O.、XEKIMOV, YU. K.、ZLOTSKIJ, S. S.、RAXMANKULOV,+
DOI:——
日期:——
JPS6072883A
申请人:——
公开号:JPS6072883A
公开(公告)日:1985-04-24
Ketalization of Ketones to 1,3-Dioxolanes and Concurring Self-Aldolization Catalyzed by an Amorphous, Hydrophilic SiO2-SO3H Catalyst under Microwave Irradiation
作者:Sandro Barbosa、Myrlene Ottone、Mainara de Almeida、Guilherme Lage、Melina Almeida、David Nelson、Wallans dos Santos、Giuliano Clososki、Norberto Lopes、Stanlei Klein、Lucas Zanatta
DOI:10.21577/0103-5053.20180039
日期:——
The amorphous, mesoporous SiO2-SO3H catalyst with a surface area of 115 m(2) g(-1) and 1.32 mmol H+ per g was very efficient for the protonation of ketones on a 10% (m/m) basis, and the catalyst-bound intermediates can be trapped by polyalcohols to produce ketals in high yields or suffer aldol condensations within minutes under low-power microwave irradiation. The same catalyst can easily reverse the ketalization reaction.