摘要
An environmentally benign method for the synthesis of octahydro-quinazolin-2,5-diones by the reaction of aromatic aldehydes,dimedone,and urea in the presence of SiO2-NaHSO4 is reported.SiO2-NaHSO4 acts as an efficient,mild,and recyclable heterogeneous catalyst to give excellent yields within a short reaction time in water at 60-80℃.
An environmentally benign method for the synthesis of octahydro-quinazolin-2,5-diones by the reaction of aromatic aldehydes,dimedone,and urea in the presence of SiO2-NaHSO4 is reported.SiO2-NaHSO4 acts as an efficient,mild,and recyclable heterogeneous catalyst to give excellent yields within a short reaction time in water at 60-80℃.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
2012年第4期677-680,共4页
关键词
化学
催化
高压
高温
octahydro-quinazolin-2
5-dione
aromatic aldehyde
dimedone
urea
water