Journal of the Chemical Society, Part 4The Society., 1949 |
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Page 2491
... condensation of benzylguanidine with ethyl cyanoacetate , could not be converted into a glycoside . This fact suggested that it might be necessary to have a disubstituted amino - group in position 2 if condensation with a sugar were to ...
... condensation of benzylguanidine with ethyl cyanoacetate , could not be converted into a glycoside . This fact suggested that it might be necessary to have a disubstituted amino - group in position 2 if condensation with a sugar were to ...
Page 2708
... condensation of DL - alanine hydroxamic acid ( II ; R = Me ) with methylglyoxal ( V ; R ' Me ) might give 1 - hydroxy - 2- keto - 3 : 5- ( VI ; R = R ' = Me ) or -3 : 6 - dimethyl - 1 : 2 - dihydropyrazine ( VII ; R = R ' = Me ) , or a ...
... condensation of DL - alanine hydroxamic acid ( II ; R = Me ) with methylglyoxal ( V ; R ' Me ) might give 1 - hydroxy - 2- keto - 3 : 5- ( VI ; R = R ' = Me ) or -3 : 6 - dimethyl - 1 : 2 - dihydropyrazine ( VII ; R = R ' = Me ) , or a ...
Page 3368
... condensation product ( 4 · 365 g . ) obtained as in the above example , was hydrolysed by boiling under reflux with 2.5N - potassium hydroxide ( 10 ml .; 0.025 g . - mol . of potassium hydroxide ) and ethyl alcohol ( 25 ml . ) . The ...
... condensation product ( 4 · 365 g . ) obtained as in the above example , was hydrolysed by boiling under reflux with 2.5N - potassium hydroxide ( 10 ml .; 0.025 g . - mol . of potassium hydroxide ) and ethyl alcohol ( 25 ml . ) . The ...
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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