Abstract
The mixture of isomers of silylated cyclopentadiene derivative C 5H 5CH 2CH 2Si(OMe) 3 ( 1) has been used for the syntheses of the mononuclear Rh(I) complexes [ η 5-C 5H 4(CH 2) 2Si(OMe) 3]Rh(CO) 2 ( 3). [ η 5-C 5H 4(CH 2) 2Si(OMe) 3]Rh(COD) ( 4) and [ η 5-C 5H 4(CH 2) 2Si(OMe) 3]Rh(CO)(PPh 3) ( 5). Upon entrapment of 3–5 in silica sol-gel matrices, air stable, leach-proof and recyclable catalysts 6–8 resulted. Their catalytic activities in some hydrogenation processes were compared with those of the non-immobilized complexes 3–5, as well as with those of homogeneous and heterogenized non-silylated analogs, 9–14.
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