TY - EJOUR
AU - Shirini, Farhad
AU - Abedini, Masoumeh
AU - Shamsi-Sani, Mahnaz
AU - Seddighi, Mohadeseh
PY - 2024
DA - February
TI - Introduction of sulfonated rice husk ash as a highly efficient reusable catalyst for the protection of the hydroxyl group
T2 - Iranian Journal of Catalysis
VL - 5
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/introduction-of-sulfonated-rice-husk-ash-as-a-highly-efficient-reusable-catalyst-for-the-protection-of-the-hydroxyl-group/
N2 - A mild, efficient and fast method for the trimethylsilyl (TMS), tetrahydropyranyl (THP) and methoxymethyl (MOM) protection of alcohols and phenols in the presence of sulfonated rice husk ash (RHA-SO3H) is reported. All reactions were performed at room temperature in high to excellent yields. All the products are separated and compared with authentic samples and/ or identified using different types of methods including FT-IR, 1H NMR and 13C NMR spectroscopy. Ease of the preparation and handling of the catalyst, heterogeneous reaction conditions, reusability of the catalyst, easy work-up procedure and short reaction times are the main advantages of this method, which make this procedure useful and attractive addition to the available methods.
IS - 4
PB - OICC Press
KW - Sulfonated rice husk ash, Trimethylsilylation, Methoxymethylation, Protection, Tetrahydropyranylation 
EN -