Journal of the Chemical SocietyThe Society., 1955 |
From inside the book
Results 1-3 of 77
Page 1151
... dried ( 30 mg . ) ( Found , in a sample dried at 90 ° / 10-3 mm . for 5 hr .: C , 65-4 ; H , 4.5 . C34H26012 requires C , 65-2 ; H , 4 · 2 % ) . Light absorption in CHCl , max . at 433 , 349 , 332 , 320 , 282 , and 256 mu ( log ε 4 · 55 ...
... dried ( 30 mg . ) ( Found , in a sample dried at 90 ° / 10-3 mm . for 5 hr .: C , 65-4 ; H , 4.5 . C34H26012 requires C , 65-2 ; H , 4 · 2 % ) . Light absorption in CHCl , max . at 433 , 349 , 332 , 320 , 282 , and 256 mu ( log ε 4 · 55 ...
Page 1558
... dried ( CaCl2 ) and distilled under reduced pressure . Ethyl chloride and methylene chloride were dried ( P2O ) and distilled . Acetonitrile was dried ( K2CO3 ) and frac- tionated , it had b . p . 81 · 0-81.3 ° / 744 mm . , n25 1 · 3422 ...
... dried ( CaCl2 ) and distilled under reduced pressure . Ethyl chloride and methylene chloride were dried ( P2O ) and distilled . Acetonitrile was dried ( K2CO3 ) and frac- tionated , it had b . p . 81 · 0-81.3 ° / 744 mm . , n25 1 · 3422 ...
Page 2030
... dried at 110 ° ( yield , 3.5 g . ) . Several crystallisations from water ( charcoal ) yielded 3 : 6 - diaminoquinoxaline - 2 - carboxyamide as yellow needles , m . p . 295 ° ( decomp . ) [ Found ( 150 ° ) : C , 53-4 ; H , 4.8 ; N , 34-5 ...
... dried at 110 ° ( yield , 3.5 g . ) . Several crystallisations from water ( charcoal ) yielded 3 : 6 - diaminoquinoxaline - 2 - carboxyamide as yellow needles , m . p . 295 ° ( decomp . ) [ Found ( 150 ° ) : C , 53-4 ; H , 4.8 ; N , 34-5 ...
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