Derivatization of compounds containing -OH groups can be accomplished quantitatively with 1,3,2-dioxaphospholanyl chloride. The chemical shifts of phosphorus in the derivatives clearly differentiate alcohols from phenols and carboxylic acids. Quantitation is obtained by use of 31P FT-NMR spectroscopy in the presence of 2,2,6,6-tetrameth-ylpiperidinyloxy free radical to shorten relaxation times. Compounds with phosphorus chemical shifts differing by as little as 0.1 ppm can be separately determined.
The mechanism of isomerization of and n'^-3-methylene-4vinyldihydrofuran-2(3H)-one complexes of Fe(0). Note; R groups on compounds succeeding ^left off for clarity. Scheme 2. 26 The mechanism for the isomerization of 1-butene using acidified Ni(P(0Et)3)4 Scheme 3. 39 Decomposition of abound metal alkyl cyanide species to form alkyl nitriles Scheme 4. 54 Attachment of metal carbonyl compounds to derivatized silica gel. Scheme 5. 68 The synthesis of meso-2,4-dimethyl-1,5-dibromopentane Scheme 6. 92
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