Journal of the Chemical Society, Part 2The Society., 1950 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Page 1392
... piperidine is heated with the same catalyst in a hydrogen atmosphere at the same temperature , some hydrogenolysis of the piperidine occurs with the formation of high - boiling bases . High yields of hydrogenolysis products are obtained ...
... piperidine is heated with the same catalyst in a hydrogen atmosphere at the same temperature , some hydrogenolysis of the piperidine occurs with the formation of high - boiling bases . High yields of hydrogenolysis products are obtained ...
Page 1393
... piperidine was heated at 230-250 ° for 12 hours with 10 % of its weight of Raney nickel , only 9.3 % survived ; the total yield of liquid product , including unchanged piperidine , was 94 % ; ammonia , together with smaller amounts of ...
... piperidine was heated at 230-250 ° for 12 hours with 10 % of its weight of Raney nickel , only 9.3 % survived ; the total yield of liquid product , including unchanged piperidine , was 94 % ; ammonia , together with smaller amounts of ...
Page 1394
... piperidine , thus : NH CH , CH , CH , CH2 H2C H2C NH + H , C CH2 CH HC N - HC CH , H.C CH , CH2 - CH , CH , CH , CH2 ... piperidine nucleus are also operative . The more detailed examination of the final products which is now in progress ...
... piperidine , thus : NH CH , CH , CH , CH2 H2C H2C NH + H , C CH2 CH HC N - HC CH , H.C CH , CH2 - CH , CH , CH , CH2 ... piperidine nucleus are also operative . The more detailed examination of the final products which is now in progress ...
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Common terms and phrases
absorption acetic anhydride acetone acetyl added alcohol alkaline alunite Amer amine ammonia anhydrous anilide aqueous sodium atom benzene boiling bromine trifluoride Calc carbonate CH₂ Chem chloroform colour colourless needles compound condensation containing cooled crystallised crystals cyanide cyclisation decomp derivatives dilute dissolved distilled dried equiv ester ethanol ethyl acetate evaporated EXPERIMENTAL extracted with ether filtered filtrate fluoride formation formed Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated kcals ketone light petroleum b. p. liquid melting method methyl minutes mixed m. p. molecule nitrate nitrile nitrogen obtained oxalate oxide oxime oxygen pickeringite picrate piperidine potassium potassium hydroxide precipitate prepared prisms pyridine reduced pressure reductive dissolution removed requires residue room temperature salt semicarbazone separated sodium hydroxide solid soluble solvent specimen sulphate sulphuric acid washed xylose yellow needles yield