Journal of the Chemical Society, Part 1The Society., 1965 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Page 461
... esters and of the 4,5 - dichloro - ester even whilst considerable starting material remained unreacted . Increasing the proportion of halogen to two moles relative to the ester ( I ) gave high yields of the corresponding 4,5 - dihalogeno - ...
... esters and of the 4,5 - dichloro - ester even whilst considerable starting material remained unreacted . Increasing the proportion of halogen to two moles relative to the ester ( I ) gave high yields of the corresponding 4,5 - dihalogeno - ...
Page 465
... ester , and the 4 - bromo - ester ( 55 mg . ) . The second fraction contained methyl 4 - bromopyrrole - 2 - carboxylate ( 224 mg . , 30 % ) , and was followed by a mixture ( 120 mg . ) of the 4 - bromo- and 4,5 - dibromo- esters , and a ...
... ester , and the 4 - bromo - ester ( 55 mg . ) . The second fraction contained methyl 4 - bromopyrrole - 2 - carboxylate ( 224 mg . , 30 % ) , and was followed by a mixture ( 120 mg . ) of the 4 - bromo- and 4,5 - dibromo- esters , and a ...
Page 1265
... ester groups , and the methyl , methylene , and hydroxyl ( or amino ) groups , now contained a singlet ( one proton ) near = 5.0 p.p.m. when measured in dimethyl sulphoxide , which can be assigned to the olefinic proton of the enolised ...
... ester groups , and the methyl , methylene , and hydroxyl ( or amino ) groups , now contained a singlet ( one proton ) near = 5.0 p.p.m. when measured in dimethyl sulphoxide , which can be assigned to the olefinic proton of the enolised ...
Contents
NO PAGE | 1 |
Reactions of ketones with oxidising agents Part II Acetoxylation of 11 and | 6 |
The synthesis of D and L2amino2carboxyethyl 2Nphosphonoguanidinoethyl | 12 |
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absorption acetic acid acetone acetyl added alumina Amax Amer ammonia aqueous atoms bands benzene bond bromide Calc calculated carbon tetrachloride catalysis cation CH₂ Chem chloroform chromatography cm.¹ complex compound concentration coupling constants crystallised crystals derivatives deuterium dichloride dilute dimethyl distilled dried effect eluted ester ethanol ether ethyl acetate evaporated EXPERIMENTAL extracted fluoride formation formed Found fraction gave H₂O heated hydrochloric acid hydrogen chloride hydrolysis hydroxide infrared infrared spectrum isobutene isomer k₁ ketone laminarin light petroleum methyl mixed m. p. mixture mmoles mole molecular molecule mµ ɛ needles nitrogen observed obtained oxide peak perchlorate phenol Phys platinum potassium prepared present proton pyridine reaction reagent reflux requires residue resin ring room temperature salt sample shown sodium sodium hydroxide solid solution solvent spectra structure sulphuric acid t-butyl Table values washed yellow yield