Journal of the Chemical Society, Part 1The Society., 1962 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Page 395
... compound ( max . 348 mu , 29,800 ) through the cyano - ethoxycarbonyl compound ( max . 344 mμ , ɛ 28,500 ) to the cyano - carbamoyl compound ( ^ max . 337 mμ , e 27,600 ) , followed by a large decrease in the dicarbamoyl compound ( max ...
... compound ( max . 348 mu , 29,800 ) through the cyano - ethoxycarbonyl compound ( max . 344 mμ , ɛ 28,500 ) to the cyano - carbamoyl compound ( ^ max . 337 mμ , e 27,600 ) , followed by a large decrease in the dicarbamoyl compound ( max ...
Page 717
... compounds , involving , e.g. , the reaction of triphenylmethyl bromide and the sodium salt of the methylene compound , which gave yields of only 5-10 % . Higher yields of tritylmalonates were obtained by the action of triarylmethyl ...
... compounds , involving , e.g. , the reaction of triphenylmethyl bromide and the sodium salt of the methylene compound , which gave yields of only 5-10 % . Higher yields of tritylmalonates were obtained by the action of triarylmethyl ...
Page 925
... compounds show a strong , red fluorescence in solution , and , moreover , the hydrogen values for B and C are too high for such structures . 6 We noticed that the spectrum of compound ( IV ) in ethanol [ max . 305 and 595 mụ ( loge 4-42 ...
... compounds show a strong , red fluorescence in solution , and , moreover , the hydrogen values for B and C are too high for such structures . 6 We noticed that the spectrum of compound ( IV ) in ethanol [ max . 305 and 595 mụ ( loge 4-42 ...
Contents
NO PAGE | 1 |
NOTES | 62 |
The use of triethylamine in the preparation of NcarboxyLproline anhydride | 68 |
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absorption acetic acid acetone added afforded alcohol alkali Amax Amer amylose anhydride aqueous solution atom benzene bromide buffer Calc carbon carbonyl CH₂ Chem chloride chloroform chromatography coefficients colourless complexes compound concentration constant containing crystallisation crystals decomposition derivative dilute distilled double bond dried eluted ester ethanol ethyl acetate evaporated experimental filtrate formation formed Found fraction gave give H₂O heated hydrazine hydrochloric acid hydrogen hydrolysis hydroxyl infrared infrared spectrum intermediate isolated isomerisation k₁ ketal ketone light petroleum b. p. m. p. and mixed malononitrile methyl mixed m. p. mixture mole molecule needles nitrogen nucleophilic obtained oxidation phenyl polymer potassium potassium hydroxide precipitate prepared present ratio reaction reagent reduction reflux requires residue room temperature sample sodium ethoxide sodium hydroxide solid solvent spectra structure Table terpyridine triethylamine ultraviolet values washed yellow yield