Journal of the Chemical SocietyThe Society., 1961 |
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Page 4907
... reagent ( 1.5 ml . ) in small tubes with ground - glass stoppers . After 30 min . at 25 ° , ferric perchlorate reagent ( 12.5 ml . ) was added and the whole shaken . After 10 min . , the optical density at 520 mμ was read against a reagent ...
... reagent ( 1.5 ml . ) in small tubes with ground - glass stoppers . After 30 min . at 25 ° , ferric perchlorate reagent ( 12.5 ml . ) was added and the whole shaken . After 10 min . , the optical density at 520 mμ was read against a reagent ...
Page 4925
... reagents , , 28 and was added during at least 12 hr . to the refluxing mixture of aryl halide , magnesium , and ether . Coupling of the Grignard reagent with chlorotrimethylsilane was normally followed by treatment of the reaction ...
... reagents , , 28 and was added during at least 12 hr . to the refluxing mixture of aryl halide , magnesium , and ether . Coupling of the Grignard reagent with chlorotrimethylsilane was normally followed by treatment of the reaction ...
Page 5558
... reagent in ether . More recently a lithium reagent was used instead of the Grignard reagent , and also an attempt was made 5 to overcome some of the disadvantages of Kohn's method by extracting isatin from a Soxhlet thimble into a ...
... reagent in ether . More recently a lithium reagent was used instead of the Grignard reagent , and also an attempt was made 5 to overcome some of the disadvantages of Kohn's method by extracting isatin from a Soxhlet thimble into a ...
Contents
NO PAGE | 4269 |
NO PAGE | 4290 |
The existence of the P¹P¹diethyl pyrophosphate | 4321 |
110 other sections not shown
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absorption acetic acid acetic anhydride acetone added alcohol alkaline alumina Amer amine ammonia atom band benzene benzoyl chloride bond bromide Calc carbonate carbonyl CH₂ Chem chloride chloroform chromatography cm.¹ complex compound concentration constant cooled crystallised crystals decomp derivative diethyl dilute dimer diol dioxan distilled dried eluted ester ethanol ethyl acetate evaporated EXPERIMENTAL ferrocene filtered filtrate formed Found fraction gave give H₂O heated hydrochloric acid hydrolysis hydroxyl infrared infrared spectrum iodide isolated isomer ketone lactone lithium aluminium hydride m. p. and mixed mixed m. p. mixture mole molecules needles nitrate nitrobenzene nitrogen obtained oxidation potassium precipitate prepared prisms proton pyridine reaction reactivity reagent reduced refluxed requires residue room temperature salt sodium hydroxide solid soluble solution solvent spectra steric stirred structure substituents sulphuric acid Table tetrahydrofuran triarsine ultraviolet values washed yellow yield