Journal of the Chemical SocietyThe Society., 1955 |
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Page 1134
... absorption max . at 273-280 mμ ( log ɛ 3.23 ) , min . at 246 mμ ( log ɛ 2 · 70 ) , and rising absorption below 210 mu ( log 4.32 at 206 mu ) [ cf. values for ( - ) - a - desmotroposantonin acetate given below ] ( Found : C , 69.8 ; H ...
... absorption max . at 273-280 mμ ( log ɛ 3.23 ) , min . at 246 mμ ( log ɛ 2 · 70 ) , and rising absorption below 210 mu ( log 4.32 at 206 mu ) [ cf. values for ( - ) - a - desmotroposantonin acetate given below ] ( Found : C , 69.8 ; H ...
Page 1454
... absorption due to the metal and displacement of the high - intensity absorption band in phenyl and phenylmercury derivatives . As part of a fundamental study of organomercury compounds , it was decided to measure the ultraviolet absorption ...
... absorption due to the metal and displacement of the high - intensity absorption band in phenyl and phenylmercury derivatives . As part of a fundamental study of organomercury compounds , it was decided to measure the ultraviolet absorption ...
Page 2003
... absorbing at 1656 cm . - 1 ; ( c ) a minor amount of a saturated ketone absorbing at 1708 cm . - 1 . The ultraviolet spectrum showed broad maximal absorption at 2850-3050 Å ( E1 %‰ m . 290 ) . ( C ) The material ( KS ) ( 1 · 2 g . ) was ...
... absorbing at 1656 cm . - 1 ; ( c ) a minor amount of a saturated ketone absorbing at 1708 cm . - 1 . The ultraviolet spectrum showed broad maximal absorption at 2850-3050 Å ( E1 %‰ m . 290 ) . ( C ) The material ( KS ) ( 1 · 2 g . ) was ...
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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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