TY - EJOUR
AU - Hosseini-Sarvari, Mona
AU - Najafvand-Derikvandi, Sepideh
PY - 2024
DA - February
TI - Synthesis of 4-(trifluoromethyl) coumarins using nano sulfated-titania as solid acid catalyst under solvent-free conditions
T2 - Iranian Journal of Catalysis
VL - 6
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/synthesis-of-4-trifluoromethyl-coumarins-using-nano-sulfated-titania-as-solid-acid-catalyst-under-solvent-free-conditions/
N2 - Nano sulfated titania was tested as solid acid heterogeneous catalyst for the synthesis of 4-(Trifluoromethyl) coumarin and coumarin derivatives under solvent-free condition. Factorial design evidenced a positive effect of reaction temperature, amount of catalyst, and solvents.  This nano-sized sulfated titania has been prepared by a sol-gel hydrothermal process. The prepared sulfated titania showed high catalytic activity in the synthesis of 4-(Trifluoromethyl) coumarin and coumarin derivatives. This method is of great value because of its environmentally benign character, easy handling, high yields, convenient operation, and green. FT-IR studies show that the catalyst can be reused for acylation without loss of catalytic activity.
IS - 5
PB - OICC Press
KW - Solvent-free condition, Nano sulfated-titania, Coumarins, Pechmann reaction 
EN -