Oxo reactions with

Bomanedione, mutarotation of, 13 Boron tribromide, for cleavage of glycoside sulfonic esters, 259 Boron trichloride, for cleavage of glycoside sulfonic esters, 259 Brigl s anhydride, oxo reaction with, 105 Butadiene, diepoxy-, sulfonylation of, 239 4-Butanelactam, 2-enamino-N,N -bis[(p-methyoxycarbonyl)phenyl]-4-(D-ga-lacto-pentaacetoxypentyl)-, 166... 

Erythrose, 4-acetamido-4-deoxy-L-, 179 —, 2,4-O-ethylidene-D-, 24 —, 2,3-0-isopropylidene-/3-D-, 33 Ethylene oxide, oxo reaction with, 63 Eumycophyta, polysaccharides of, 367... 

Galactal, 3,4,6-tri-O-acetyl-D-, oxo reaction with, 73 Galactans fungal, 392,398 hetero-, 410... 

Glucose-5,6,6 -da, a-D-, nuclear magnetic resonance spectrum of, 45 (8-D-Glucosidase, 212 Glucoside, methyl 4,6-O-benzylidene-a-D-, 0X0 reaction with, 107 —, mediyl 4,6-0-benzylidene-/3-D-, oxo reaction with, 107... 

Glycals, oxo reaction with, 66,86 —, 2-hydroxy-, oxo reaction with, 92 Glycenoses, 234... 

Hex-1 -enopyranose, tetra-O-acetyl-1 -de-oxy-D-, 0X0 reaction with, 92 —, tetra-O-acetyl-l-deoxy-D-arobino-, oxo reaction with, 93... 

Hex-3-enose, 3-deoxy-l,2 5,6-di-0-iso-propylidene-a-D-en/thro-, oxo reaction with, 100... 

It has been stated that a formyl group formed during the hydrofoimylation reaction of unfunctionalized olefins is unlikely to be attached to a quaternary carbon atom (the Keulemans rule). An example of this general rule is the oxo reaction with 2,3-dimethyl-2-butene, where 3,4-dimethylpentanal is formed exclusively. For both rhodium and cobalt catalysts, isomerization of the substrate is followed by hydrofoimylation (Scheme 1) [47, 48]. 

Fatty acids (mostly branched) are produced from alkenes by addition of water and carbon monoxide (Reppe synthesis) or addition of hydrogen and carbon monoxide (Roelen or Oxo reaction) with subsequent oxidation (24,25). However, our studies with added alkenes (e.g., Figure 5) indicated that the olefins produced were not precursors of either the normal or branched fatty acids. Oxygenated compounds, such as normal... 

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