Journal of the Chemical SocietyThe Society., 1953 |
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Page 421
... bond represent- ation of mesomeric electron displacements , we must conclude that contribution from structures of type ( IIIb ) can equal the combined effects of contributions of type ( IIIa ) and of the negative inductive effect of the ...
... bond represent- ation of mesomeric electron displacements , we must conclude that contribution from structures of type ( IIIb ) can equal the combined effects of contributions of type ( IIIa ) and of the negative inductive effect of the ...
Page 452
... bond - lengths , that the O - P bonds in POX , resemble double , rather than single bonds . The bond - energy data point in the same direction . = A reliable evaluation of the energy of the single - bonded P - O link cannot yet be made ...
... bond - lengths , that the O - P bonds in POX , resemble double , rather than single bonds . The bond - energy data point in the same direction . = A reliable evaluation of the energy of the single - bonded P - O link cannot yet be made ...
Page 464
... bond is present in a vinylidene group and the inert double bond is most probably of the tetra- substituted type . In contrast to the parent acid the stereoisomeric dihydro- acids do not decarboxylate , indicating that the reactive ...
... bond is present in a vinylidene group and the inert double bond is most probably of the tetra- substituted type . In contrast to the parent acid the stereoisomeric dihydro- acids do not decarboxylate , indicating that the reactive ...
Contents
Internuclear Cyclisation Part VII The Synthesis of Some NitroNmethyl | 1 |
Synthesis of Polymethylnaphthalenes | 8 |
Kestose a Trisaccharide formed from Sucrose by Yeast Invertase | 24 |
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absorption acetic acid acetic anhydride acetone acetyl acidified added alcohol alkaline aluminium aluminium chloride Amer amine aqueous sodium atom benzene boiling bromine Calc carbon Chem Chim chloroform chromatographed colourless compound concentrated cooled crystallised crystals D.Sc decomp derivatives dilute dissolved distilled dried elution equiv ester ethanol ethyl acetate ethylene evaporated extracted with ether filtered filtrate formed Found fraction gave give m. p. H₂O heated hydrochloric acid hydrogen chloride hydrogen sulphate hydrolysis hydroxyl infra-red iodide isolated ketone light petroleum b. p. liquid lithium aluminium hydride m. p. and mixed method mixed m. p. mixture mole obtained oxidation oxidised pale yellow phosphorochloridate polyporenic potassium hydroxide precipitate prepared prisms pyridine reaction reduced refluxed requires residue room temperature salt sodium hydroxide solid soluble solution solvent spectra sulphuric acid ultra-violet washed yellow needles yield