Quarterly Journal of the Chemical Society of London |
Contents
Longrange coupling in ketones and their complexes | 4084 |
The identities of the antibiotics colistin and polymyxin | 4107 |
Quantitative aspects of Lewis acidity Part I A spectroscopic study of the equili | 4134 |
Copyright | |
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absorption acetic acid acetone added adduct alcohol alkali alkyl alumina Amax Amer ammonia anion aqueous aromatic atom band base benzene boiling bond bromide Calc carbon cation CH₂ Chem chloride chloroform chromatography cm.¹ colistin complex compounds concentration crystallised crystals decomp derivatives diethylthallic dilute dimethyl dimethylformamide dioxan distilled dried effect electron Equiv ester ethanol ether evaporated EXPERIMENTAL extracted formed Found fraction gave H₂O halides heated hydride hydrochloric acid hydrogen hydrolysis infrared infrared spectrum iodide isolated ketone kinetic lactone lithium lithium aluminium hydride log ɛ metal methyl mixture mole molecule nitrogen obtained oxidation perchlorate phenol phosphorus Phys polymyxin potassium prepared protons pyridine reaction reagent reflux requires residue resonance room temperature salt sample sodium hydroxide solution solvated solvated electrons solvent species spectra sporidesmin stirred structure substitution Table triethyl phosphite ultraviolet values yield