Silica-bonded n-propyltriethylene-tetramine as a recyclable solid base catalyst for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes Marzieh Makvandi, Fatemeh Abiar Dil, Ameneh Malekzadeh, Mojtaba Baghernejad, Khodabakhsh Niknam, XML Requires Subscription HTML views: 19