By Don Bradley, R. C. Mehrotra, Ian Rothwell, A. Singh
This article is predicated on steel Alkoxides (Academic Press, 1978), and has been up-to-date and increased to incorporate advancements during this becoming box from the previous twenty years. insurance contains homometallic alkoxides; heterometallic alkoxides; x-ray crystal buildings of alkoxo steel compounds; steel oxo-alkoxides; steel aryloxides; and their business purposes in such parts as microelectronics, ceramics, non-linear optical fabrics, high-temperature superconductors, and really expert glasses. meant as a reference for these operating within the box, in addition to to be used as a supplementary textual content for complex inorganic chemistry classes.
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71) carried out with chromium trichloride or cobalt dichloride with two equivalents of the lithium reagent yields the heterobimetallic species [(thf)2 Li( -OCBut3 )Cr(OCBut3 )]230 or [(thf)3 Li( -Cl)Co(OCBut3 )2 ],231 respectively. The reaction represented by Eq. 74): VCl3 C x LiOCH2 CF3 benzene ! 72 where x D 1 or 2,232 CrO2 Cl2 C x LiOR ! 234 Mo2 Cl6 dme C 6LiOR DME ! 76 Homometallic Alkoxides 31 In view of the reversible nature of the reactions, a continuous removal of water during these reactions is necessary to yield the final alkoxide products.
418 – 420 2MR3 C 3O2 ! 155 3 where M D B, Al. 421 The addition of O2 to But3 CO TiMe3 afforded three different crystalline derivatives421 as represented by the formula TiMe3 x OMe x OCBut3 where x D 1, 2, 3. But3 CO 2 MMe2 C O2 ! 156 where M D Ti, Zr, Hf. 6 By Insertion of Aldehydes or Ketones Across a Metal–Carbon or Metal–Hydrogen Bond (J-6) Coates and Fishwick385 as early as 1968 observed that dimethylberyllium adds to acetaldehyde or acetone to form MeBe(OCHMe2 ) or MeBe(OBut ), respectively.
2Cr(NEt2 4 C 7R0 R00 CHOH ! 107 Similar to the alcoholysis reaction of tetrameric aluminium isopropoxide293 with tertbutyl alcohol, the alcoholysis reaction of dimeric aluminium tris(dimethyl amide)337,338 with tert-butyl alcohol is also slow owing to steric factors. However, the amide route affords finally the tris product [Al OBut 3 ], (Eq. 108) instead of the mixed product of the type Al2 OBut 5 OPri which was finally obtained in the reaction of [Al OPri 3 ]4 with an excess of But OH. Al2 NMe2 6 C 5But OH !