Synthesis of pinacol silylethers from aromatic aldehydes via α-siloxybenzyliron complexes

A Method for the Synthesis of Carbene Precursors from Aldehydes and the Metalates (η5-C5H5)(CO)2Fe- and (η5-C9H7)(CO)2Fe-

“…By using a larger excess of p -anisaldehyde, the yield of 7c was improved from 52% to 62%. A major byproduct in the synthesis of 7c was the dimer [In(CO) 2 Fe] 2 . , Minor byproducts included the silyl complex In(CO) 2 Fe−SiMe 3 and the pinacol silyl ether [( p -OCH 3 Ph)CH−(OSiMe 3 )] 2 ,9b the latter is thought to be formed by decomposition of the product 7c …”

Organoiron Compounds for Selective Organic Transformations

“…85 Pinacol silyl ethers 141 can also be prepared from the complexes 138 by thermodecomposition at 60 °C in 48-88% yield (Scheme 42). 87 The only byproduct formed in these reactions is the dimer 1 (see,…”