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Ru III (OTf)SalophenCH 2 –NHSiO 2 –Fe: an efficient and magnetically recoverable catalyst for trimethylsilylation of alcohols and phenols with hexamethyldisilazane
Author(s) -
Torki Maryam,
Tangestaninejad Shahram,
Mirkhani Valiollah,
Moghadam Majid,
MohammadpoorBaltork Iraj
Publication year - 2014
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3125
Subject(s) - chemistry , ruthenium , catalysis , phenols , inductively coupled plasma , amine gas treating , phenol , transmission electron microscopy , polymer chemistry , nuclear chemistry , organic chemistry , inorganic chemistry , chemical engineering , plasma , engineering , physics , quantum mechanics
Efficient trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) catalyzed by ruthenium(III) complex of chloromethylated Salophen supported on nanomagnetic materials is reported. First, the iron nanomagnets were silica coated, functionalized with amine and then ruthenium CM‐Salophen was successfully bonded to their surface. The catalyst, Ru III (OTf)SalophenCH 2 –NHSiO 2 –Fe, was characterized by elemental analysis, FT‐IR and UV–visible spectroscopic techniques, transmission electron microscopy and inductively coupled plasma (ICP). The Ru III (OTf)SalophenCH 2 –NHSiO 2 –Fe catalyzed trimethylsilylation of primary and secondary alcohols as well as phenols, and the corresponding TMS ethers were obtained in high yields and short reaction times at room temperature. This new heterogenized trimethylsilylation catalyst is easily recovered with a magnet and showed no appreciable loss of activity even after five consecutive runs. Copyright © 2014 John Wiley & Sons, Ltd.