Quarterly Journal of the Chemical Society of London, Part 3, Pages 1153-2704 |
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Page 1330
... acid , and 1- and 3 - diamino 2 - methylanthraquinones , correspond- ing to 2- ( 3 - amino - 4 - methylbenzoyl ) -4 ... sulphuric acid ( 145 ml . ) and a mixture of 65 % nitric acid ( 14 · 5 ml . ) and concentrated sulphuric acid ( 20 ml ...
... acid , and 1- and 3 - diamino 2 - methylanthraquinones , correspond- ing to 2- ( 3 - amino - 4 - methylbenzoyl ) -4 ... sulphuric acid ( 145 ml . ) and a mixture of 65 % nitric acid ( 14 · 5 ml . ) and concentrated sulphuric acid ( 20 ml ...
Page 1558
... sulphuric acid and isolation with benzene , the oil in acetic acid ( 100 c.c. ) and hydrobromic acid ( 100 c.c .; 50 % ) was slowly distilled through a 15 - cm . Vigreux column for 4 hr . Sulphuric acid ( 10 c.c .; 20N ) was added and ...
... sulphuric acid and isolation with benzene , the oil in acetic acid ( 100 c.c. ) and hydrobromic acid ( 100 c.c .; 50 % ) was slowly distilled through a 15 - cm . Vigreux column for 4 hr . Sulphuric acid ( 10 c.c .; 20N ) was added and ...
Page 1978
... sulphuric acid . Anthra [ 1,2 - c ] cinnoline.- 1,2,3,4 - Tetrahydroanthra- [ 1,2 - c ] cinnoline ( 0-38 g . ) was dehydrogenated for 22 hr . in the presence of 5 % palladium - carbon ( 0-3 g . ) and oleic acid ( 2 g . ) as described ...
... sulphuric acid . Anthra [ 1,2 - c ] cinnoline.- 1,2,3,4 - Tetrahydroanthra- [ 1,2 - c ] cinnoline ( 0-38 g . ) was dehydrogenated for 22 hr . in the presence of 5 % palladium - carbon ( 0-3 g . ) and oleic acid ( 2 g . ) as described ...
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Common terms and phrases
absorption acetic acid acetone acetyl adduct alcohol alumina Amer amine anhydride aqueous aromatic ation atom benzene bromide Calc carbon carbonyl CH₂ Chem chloride chloroform chromatography cm.¹ compound cooled crystallised decomp derivative dilute dimethyl distilled doublet dried eluted ester ethanol ethyl acetate evaporated extracted with ether filtered filtrate formed Found fraction gave give heated under reflux hydrochloric acid hydrogen hydrolysis infrared spectrum irradiated isolated isomer ketone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl ether mixed m. p. mmoles mole multiplet n.m.r. spectrum needles nitrogen obtained oxide phenyl potassium potassium hydroxide prepared protons pyridine quinone reaction mixture reduced pressure reduction requires residue ring room temperature silica gel singlet sodium borohydride sodium hydroxide solution solvent spectra stirred structure sulphuric acid VIII washed yellow yield