Journal of the Chemical SocietyThe Society., 1964 |
From inside the book
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Page 3612
... carbonyl group in digacetigenin could not be at C - 20 ; instead , the acetoxyl group was placed at this position in digacetigenin , giving rise to a 20α - hydroxyl group in deacetyldigacetigenin , which by oxidation with chromium ...
... carbonyl group in digacetigenin could not be at C - 20 ; instead , the acetoxyl group was placed at this position in digacetigenin , giving rise to a 20α - hydroxyl group in deacetyldigacetigenin , which by oxidation with chromium ...
Page 3973
... carbonyl interaction has been established for the 2 - acetylbenzoyl derivative and very probably occurs in the lævulinoyl series . An interaction between amido- or imido - groups and the carbonyl of ketones and carboxy groupings can ...
... carbonyl interaction has been established for the 2 - acetylbenzoyl derivative and very probably occurs in the lævulinoyl series . An interaction between amido- or imido - groups and the carbonyl of ketones and carboxy groupings can ...
Page 3974
... carbonyl , and amido groups . At this point mention should be made of a hypothesis put forward on several occasions by Wrinch 14 concerning ring formations , called by her " cyclols , " between two > CO.NH- groupings in peptides . The ...
... carbonyl , and amido groups . At this point mention should be made of a hypothesis put forward on several occasions by Wrinch 14 concerning ring formations , called by her " cyclols , " between two > CO.NH- groupings in peptides . The ...
Contents
4028 | 3507 |
Nucleophilic reactivity Part V The reaction between amines and ethyl meth | 3513 |
Molecular polarisability Dipole moments molar Kerr constants and apparent | 3523 |
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Common terms and phrases
absorption acetic acid acetic anhydride acetone acetoxylation acetyl added alcohol alkaline alumina aluminium Amer amine atoms band benzene benzyl bond bromide Calc carbon carbonyl CH₂ chabazite Chem chloride chloroform chromatography cm.¹ compounds concentration crystals decomp derivatives diethyl diluted dimethylformamide diol dissolved distilled dried ester ethanol ethyl acetate evaporated EXPERIMENTAL extracted with ether filtrate formation Found fraction gave give heated hydrochloric acid hydrochloride hydrogen hydrolysis hydroxyl infrared iodide isomers K₁ ketone kinetic light petroleum lithium lithium aluminium hydride m. p. and mixed mixed m. p. mixture mole molecules needles nitrate nitric acid nitrogen o-xylene obtained optical oxide oxygen petroleum b. p. phenol picrate potassium precipitated prepared proton pyridine rate constants reaction recrystallised refluxed requires residue room temperature salt sodium hydroxide solvent spectra spectrum stirred structure substitution sulphuric acid Table values washed yield