Hydrogen bonding in organometallic ligands and possible implications for carbon monoxide/hydrogen molecule chemistry, First carbonylation of an isolable metal .alpha.-hydroxyalkyl complex
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The metallacyclic α-hydroxyalkyl complex (CO)4MnNH2CHR1CHR2CHOH (2c, R1 = R2 = -(CH2)4-) carbonylates (-3 ± 1 °C, 250-360 psi of CO) to an acyl complex, (CO)4MnNH2CHR1CHR2CH(OH)C=O (3c), over 16 times faster than its α-(trimethylsilyl)oxy analogue. IR and 13C NMR spectra show an intramolecular hydrogen bond in 3c; this is proposed to account, at least in part, for the faster carbonylation of 2c. © 1984, American Chemical Society. All rights reserved.
author list (cited authors)
Vaughn, G. D., & Gladysz, J. A.