Journal of the Chemical SocietyThe Society., 1948 |
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Page 957
... method developed in this series for purine nucleoside synthesis . The initial step in this method is condensation of a suitable 4 : 6 - diaminopyrimidine with an aldose in hot alcoholic solution in presence of an acidic catalyst , and ...
... method developed in this series for purine nucleoside synthesis . The initial step in this method is condensation of a suitable 4 : 6 - diaminopyrimidine with an aldose in hot alcoholic solution in presence of an acidic catalyst , and ...
Page 961
... method of controlling the reaction could be devised . The method proved equally unsatisfactory when applied to ( VI ; R Ac ) . The indifferent results were doubtless due , in part , to formation of nickel complexes and the ready ...
... method of controlling the reaction could be devised . The method proved equally unsatisfactory when applied to ( VI ; R Ac ) . The indifferent results were doubtless due , in part , to formation of nickel complexes and the ready ...
Page 1937
... method and , incorporating the cytidine deamination procedure , obtained yields of 17.5-22.5 g . of uridine from 360 g . of nucleic acid . These authors were unable , after several attempts , to prepare cytidine by Bredereck's method ...
... method and , incorporating the cytidine deamination procedure , obtained yields of 17.5-22.5 g . of uridine from 360 g . of nucleic acid . These authors were unable , after several attempts , to prepare cytidine by Bredereck's method ...
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 CHâ‚‚ 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