Silica-bonded S-sulfonic acid a recyclable catalyst for the synthesis of coumarins
Khodabakhsh Niknam, Dariush Saberi, Mojtaba Baghernejad
Silica-bonded S-sulfonic acid a recyclable catalyst for the synthesis of coumarins
Khodabakhsh Niknam, Dariush Saberi, Mojtaba Baghernejad
中国化学快报 . 2009, (12): 1444 -1448 .  DOI: 10.1016/j.cclet.2009.06.039