Journal of the Chemical SocietyThe Society., 1948 |
From inside the book
Results 1-3 of 81
Page 1025
... heated 3 hours at 150-160 ° . The deep red product was crystallised from glacial acetic acid and then from aqueous alcohol ; yield , 5.4 g .; m . p . 225 ° . Decarboxylation . Stilbene - a : 4 - dicarboxylic acid ( 2.0 g . ) was heated ...
... heated 3 hours at 150-160 ° . The deep red product was crystallised from glacial acetic acid and then from aqueous alcohol ; yield , 5.4 g .; m . p . 225 ° . Decarboxylation . Stilbene - a : 4 - dicarboxylic acid ( 2.0 g . ) was heated ...
Page 1135
... heated gradually to 170 ° . The cooled product was heated with water , and the insoluble material was collected and dissolved in hot 4N - sodium hydroxide - it is not appreciably soluble in cold dilute alkali . Addition of acetic acid ...
... heated gradually to 170 ° . The cooled product was heated with water , and the insoluble material was collected and dissolved in hot 4N - sodium hydroxide - it is not appreciably soluble in cold dilute alkali . Addition of acetic acid ...
Page 1715
... heated with 4 - methyluracil in the presence of zinc chloride no definite product was obtained , but when they were heated together in aniline solution 4- ( p - dimethylaminostyryl ) uracil was formed . This method of condensation does ...
... heated with 4 - methyluracil in the presence of zinc chloride no definite product was obtained , but when they were heated together in aniline solution 4- ( p - dimethylaminostyryl ) uracil was formed . This method of condensation does ...
Contents
acetic acid | 963 |
The isolated base 2 5 g m p 125 with frothing was readily soluble in most organic solvents | 6 |
addition of zinc dust 0 2 g during 15 minutes followed by heating on the steambath for hour | 114 |
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Common terms and phrases
4-trimethyl absorption acetic anhydride acetone acetyl added alcohol alkaline Amer amine ammonia atoms bands benzaldehyde benzene boiling bromine Calc carbon CH₂ Chem chloroform colourless needles compound concentrated hydrochloric acid condensation cooled crystallised crystals D.Sc decomp derivative diazotised dilute dissolved distilled dried electrons energy equiv ester ethanol ether ethyl acetate evaporated experimental extracted filtered filtrate formation formed Found fraction gave give glacial acetic acid heated hydrocarbon hydrochloric acid hydrogen chloride hydrolysis iodine isolated ketone light petroleum m. p. and mixed method methyl mixed m. p. mixture molecular molecule nitrogen obtained orbitals oxidation polysaccharide potassium hydroxide precipitated prepared prisms proflavine pyridine reaction refluxed removed requires residue resonance room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure substance sulphate sulphuric acid surface vacuum values washed yellow needles yield