Journal of the Chemical Society, Part 3Chemical Society., 1949 |
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Page 1938
... anhydride , sulphuric acid , and acetic acid on cis - cyclohexanol - 2 - sulphonic acid . It is probable that acetic anhydride reacts with sulphuric acid to form a mixed anhydride ( Russell and Cameron , J. Amer . Chem . Soc . , 1938 ...
... anhydride , sulphuric acid , and acetic acid on cis - cyclohexanol - 2 - sulphonic acid . It is probable that acetic anhydride reacts with sulphuric acid to form a mixed anhydride ( Russell and Cameron , J. Amer . Chem . Soc . , 1938 ...
Page 2171
... Anhydride ( IV ) .- The naphthopyrene ( II ) ( 1 g . ) , maleic anhydride ( 1 g . ) , and xylene ( 20 c.c. ) were boiled for 1 hour . Dilute sodium hydroxide was added and the xylene removed with steam . The filtered hot solution was ...
... Anhydride ( IV ) .- The naphthopyrene ( II ) ( 1 g . ) , maleic anhydride ( 1 g . ) , and xylene ( 20 c.c. ) were boiled for 1 hour . Dilute sodium hydroxide was added and the xylene removed with steam . The filtered hot solution was ...
Page 2360
... anhydride A ( 0 · 4 g . ) with dry methanol ( 2 c.c. ) afforded 4 - carbomethoxy - 3- methoxalyl - 5 : 5 - dimethyl - 2 - isopropylthiazolidine - 2 - carboxylic acid , m . p . 195 ° ( decomp . ) , unaltered by recrystallisation from ...
... anhydride A ( 0 · 4 g . ) with dry methanol ( 2 c.c. ) afforded 4 - carbomethoxy - 3- methoxalyl - 5 : 5 - dimethyl - 2 - isopropylthiazolidine - 2 - carboxylic acid , m . p . 195 ° ( decomp . ) , unaltered by recrystallisation from ...
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Common terms and phrases
acetic acid acetic anhydride acetone acetyl added admixture alkaline alkyl aluminium chloride Amer ammonia aqueous solution atoms barium benzene boiling bromine Calc carbinol carbon catalyst Chem Chim chloroform colourless needles compound concentrated condensation cooled crystals cyclohexene decomp derivatives dilute dioxan dissolved distilled dithizone dried equiv ester ethanol ethyl acetate ethyl alcohol ethylene evaporated EXPERIMENTAL filtered filtrate formed Found fraction gave give heated under reflux hydrocarbon hydrochloric acid hydrogen chloride hydrolysis iodide ions isolated ketone Light absorption light petroleum b. p. method methyl mixed m. p. mixture molecule obtained oxide phenyl plates potassium hydroxide precipitated prepared pressure prisms pyridine Q-enzyme R₁ R₂ reaction reagent reduced removed requires residue room temperature salt semicarbazone separated sodium hydroxide solid soluble solvent specimen structure substance sulphate sulphone sulphuric acid synthesis Table unsaturated washed yield