Journal of the Chemical SocietyThe Society., 1955 |
From inside the book
Results 1-3 of 34
Page 1200
... Elution with benzene - ether ( 1 : 3 ) gave a band yielding a red azulenic oil ( 2 g . ) . A strongly adsorbed material , a brown oil ( 0.5 g . ) eluted with acetone , accounted for the total amount chromatographed . Chromatography of ...
... Elution with benzene - ether ( 1 : 3 ) gave a band yielding a red azulenic oil ( 2 g . ) . A strongly adsorbed material , a brown oil ( 0.5 g . ) eluted with acetone , accounted for the total amount chromatographed . Chromatography of ...
Page 1330
... eluted with methanol from appropriate areas of the papers . After removal of the solvent under reduced pressure boric acid was removed by repeated distillation with methanol . The resulting sugars were separately converted into the ...
... eluted with methanol from appropriate areas of the papers . After removal of the solvent under reduced pressure boric acid was removed by repeated distillation with methanol . The resulting sugars were separately converted into the ...
Page 1613
... eluted by light petroleum - benzene ( 1 : 4 , 1050 ml .; 1 : 1 , 1350 ml . ) were combined ( 1.5 g . ) and twice crystallised from acetone - water to give the 25 - hydroxy - 25 - phenyl - 26 - norcyclolaudanyl acetate as small needles ...
... eluted by light petroleum - benzene ( 1 : 4 , 1050 ml .; 1 : 1 , 1350 ml . ) were combined ( 1.5 g . ) and twice crystallised from acetone - water to give the 25 - hydroxy - 25 - phenyl - 26 - norcyclolaudanyl acetate as small needles ...
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