Journal of the Chemical SocietyThe Society., 1955 |
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Page 1244
... salt used for determining the specific rotation ( after this had been discovered , all specific rotations were determined in acetone solution ) ; and ( c ) the specific rotation of the salt of the ( - ) - acid had a fairly large ...
... salt used for determining the specific rotation ( after this had been discovered , all specific rotations were determined in acetone solution ) ; and ( c ) the specific rotation of the salt of the ( - ) - acid had a fairly large ...
Page 1663
... salt , [ a ] D + 48.5 ° , was readily obtained , but second - order asymmetric transformation prevented the isolation of the more soluble salt in an optically pure condition . In one resolution fractions representing 85 % of the salt ...
... salt , [ a ] D + 48.5 ° , was readily obtained , but second - order asymmetric transformation prevented the isolation of the more soluble salt in an optically pure condition . In one resolution fractions representing 85 % of the salt ...
Page 1768
... salt should have four carboxylate groups and no un - ionised carboxyl groups . There should therefore be one strong band between 1560 and 1600 cm.1 due to the asymmetric stretching frequency ( OCO ) of the ionised carboxyl group . The ...
... salt should have four carboxylate groups and no un - ionised carboxyl groups . There should therefore be one strong band between 1560 and 1600 cm.1 due to the asymmetric stretching frequency ( OCO ) of the ionised carboxyl group . The ...
Contents
By F SMITH and LILIAN M TURTON | 1045 |
The Constitution of Homolycorine and Lycorenine | 1066 |
The Photolysis of Acetaldehyde Part III The Reaction in the Presence of Nitric | 1076 |
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Common terms and phrases
acetic anhydride acetone acetyl acidified added alcohol alkali Amer ammonia aqueous sodium aqueous solution atom benzene boiling bromine Calc carbon Chem chloride chloroform chromatography colourless compound concentrated cooled crystallised from methanol decomp derivative dilute dimethyl dioxan dissolved distillation dried eluted ester ethanol evaporated EXPERIMENTAL filtered filtrate formed Found fraction gave give glacial acetic acid H₂O heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone light petroleum b. p. lithium aluminium hydride m. p. and mixed method methyl mixed m. p. mixture molecule naphthazarin nitric oxide nitrogen obtained oxide pale yellow picrylsulphonate potassium hydroxide precipitate prepared prisms pyridine reaction reduced pressure refluxed removed Reprint Order requires residue ring room temperature salt separated sodium hydroxide solid soluble solvent steam-bath stirred structure sulphide sulphone sulphuric acid titration values vouacapenate washed yellow needles yield