Journal of the Chemical Society, Part 3Chemical Society., 1949 |
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Results 1-3 of 83
Page 1723
... residue was negligible . A similar result was obtained after boiling for 4 hours with phosphoryl chloride . o - Methoxymethylphenylacetic Acid ( VI ; R OH ) .— A solution of potassium hydroxide ( 4 g . ) in water ( 4 c.c. ) was prepared ...
... residue was negligible . A similar result was obtained after boiling for 4 hours with phosphoryl chloride . o - Methoxymethylphenylacetic Acid ( VI ; R OH ) .— A solution of potassium hydroxide ( 4 g . ) in water ( 4 c.c. ) was prepared ...
Page 1759
... residues is also produced on hydrolysis of the methylated degraded gum indicating that the D - glucuronic acid residue and the D - galactose residue are attached to D - galactose residues and not to pentose residues , since the latter ...
... residues is also produced on hydrolysis of the methylated degraded gum indicating that the D - glucuronic acid residue and the D - galactose residue are attached to D - galactose residues and not to pentose residues , since the latter ...
Page 2041
... residue was thoroughly washed with hot water , the aqueous extracts ( X ) were combined ( see below ) , and the oily layer was distilled , yielding fractions ( i ) ( 29 g . ) b . p . 138 ° / 25 mm . , n20 1.4820 , ( ii ) ( 74 g . ) b ...
... residue was thoroughly washed with hot water , the aqueous extracts ( X ) were combined ( see below ) , and the oily layer was distilled , yielding fractions ( i ) ( 29 g . ) b . p . 138 ° / 25 mm . , n20 1.4820 , ( ii ) ( 74 g . ) b ...
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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 D.Sc decomp derivatives dilute dioxan dissolved distilled dithizone dried equiv ester ethanol ethyl acetate ethyl alcohol 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