Journal of the Chemical Society, Part 2Chemical Society., 1949 |
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Page 1031
... cyclisation to the other indenes described it is assumed to be 2 - phenyl - 3 - methyl - 1 - ethylindene , which would agree with the properties quoted by Plentl and Bogert ( loc . cit . ) . 2 : 3 - Diphenylbutadiene and acetophenone ...
... cyclisation to the other indenes described it is assumed to be 2 - phenyl - 3 - methyl - 1 - ethylindene , which would agree with the properties quoted by Plentl and Bogert ( loc . cit . ) . 2 : 3 - Diphenylbutadiene and acetophenone ...
Page 1085
... cyclisation of saturated acids in the absence of such activation , although it is known that if unsaturation is present in the carbon chain five - membered rings may be formed preferentially ( compare Stobbe and Vieweg , Ber . , 1902 ...
... cyclisation of saturated acids in the absence of such activation , although it is known that if unsaturation is present in the carbon chain five - membered rings may be formed preferentially ( compare Stobbe and Vieweg , Ber . , 1902 ...
Page 1388
... cyclisation nor the facts given in section ( b ) of the preceding discussion . EXPERIMENTAL . ( All m . p.s are uncorrected . Analyses by Miss D. Wauchope . M. p.s in parentheses refer to those given in the literature . ) 3 : 6 ...
... cyclisation nor the facts given in section ( b ) of the preceding discussion . EXPERIMENTAL . ( All m . p.s are uncorrected . Analyses by Miss D. Wauchope . M. p.s in parentheses refer to those given in the literature . ) 3 : 6 ...
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Common terms and phrases
4-dinitrophenylhydrazone absorption acetic anhydride acetone acetyl acidified added aldehyde alkaline aluminium chloride Amer amine ammonia aniline aqueous sodium atom benzene boiling bond bromine Calc carbon catalyst CHâ‚‚ Chem chloroform citrinin colourless needles compound condensation cooled crystallised crystallised from alcohol crystals cyanide cyclisation decomp derivative dilute dissolved distilled dried electrode ester evaporated extracted with ether filtered filtrate formed colourless Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone lactone light petroleum b. p. m. p. and mixed methanol method methyl alcohol minutes mixed m. p. mixture molecule obtained oxide phenol phosphoric picrate potassium hydroxide precipitate prepared pyridine reaction reduced pressure requires residue resin room temperature salt separated sodium hydroxide solid soluble solution solvent specimen structure substance sulphuric acid triethylamine values washed yellow needles yield