KAl(SO 4 ) 2 · 12H 2 O (alum) a reusable catalyst for the synthesis of some 4-substituted coumarins via Pechmann reaction under solvent-free conditions

Author: Azizian Javad  

Publisher: Springer Publishing Company

ISSN: 0026-9247

Source: Monatshefte für Chemie / Chemical Monthly, Vol.139, Iss.7, 2008-07, pp. : 805-808

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