Journal of the Chemical Society, Part 4The Society., 1949 |
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Results 1-3 of 77
Page 2486
... filtrate concentrated to small volume under reduced pressure , and N - sulphuric acid ( 20 c.c. ) added ; the mixture was kept at 70-75 ° for 1 hours , then neutralised with barium hydroxide and barium carbonate , and filtered hot , the ...
... filtrate concentrated to small volume under reduced pressure , and N - sulphuric acid ( 20 c.c. ) added ; the mixture was kept at 70-75 ° for 1 hours , then neutralised with barium hydroxide and barium carbonate , and filtered hot , the ...
Page 2925
... filtrate and washings were distilled on a water - bath to remove the ether . Distillation of the residue gave diethyl chlorophosphinate of b . p . 45-53 ° / 15 mm . ( 80.8 g . , 35.5 % ) ( Found : C , 31-2 ; H , 7.4 . Calc . for C4H10O ...
... filtrate and washings were distilled on a water - bath to remove the ether . Distillation of the residue gave diethyl chlorophosphinate of b . p . 45-53 ° / 15 mm . ( 80.8 g . , 35.5 % ) ( Found : C , 31-2 ; H , 7.4 . Calc . for C4H10O ...
Page 3079
... filtrate and washings were evaporated in vacuo at room temperature , and tetraethylphenylarsonatodigold crystallised ... filtrate precipitated 2 : 2 ' - dipyridyldiethylauric picrate , m . p . 190 ° ( decomp . ) ( Found : Au , 30.3 ...
... filtrate and washings were evaporated in vacuo at room temperature , and tetraethylphenylarsonatodigold crystallised ... filtrate precipitated 2 : 2 ' - dipyridyldiethylauric picrate , m . p . 190 ° ( decomp . ) ( Found : Au , 30.3 ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol alkaline aluminium chloride aluminium iodide Amer amine ammonia aqueous sodium atom benzaldehyde benzene boiling bond bromide bromine trifluoride Calc carbon CH₂ Chem chloroform colourless needles compound concentrated condensation containing cooled crystallised crystals D.Sc decomp decomposition derivatives diazotised dilute dioxan dissolved distilled dried ester ethanol ethyl alcohol extracted with ether filtered filtrate formation formed Found fraction gave Grignard reagent halide heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated ketone light petroleum b. p. liquid method methyl methyl iodide minutes mixture molecule nitrate nitrogen obtained oxidation phenol picrate potassium precipitate prepared prisms pyridine reaction reagent recrystallised from ethanol reduced pressure removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent sulphate sulphone sulphuric acid synthesis Table tube values washed yield