Quarterly Journal of the Chemical Society of London |
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Page 3132
... identical with 6,8 - dibromo - 3,4 - dihydro - 7 - hydroxy coumarin 106 giving a red colour with spray ( 2 ) . Identical results were obtained on treatment of the dibromo - spiro - lactone with N - sulphuric acid at 90 ° . We are ...
... identical with 6,8 - dibromo - 3,4 - dihydro - 7 - hydroxy coumarin 106 giving a red colour with spray ( 2 ) . Identical results were obtained on treatment of the dibromo - spiro - lactone with N - sulphuric acid at 90 ° . We are ...
Page 3348
... identical with the authentic material run as control insolvents 2 and 3 , R 0.92 in solvent 2. It had m . p . and mixed m . p . 193–196 ° ( from methanol ) . An X - ray powder photograph was identical with that of the authentic material ...
... identical with the authentic material run as control insolvents 2 and 3 , R 0.92 in solvent 2. It had m . p . and mixed m . p . 193–196 ° ( from methanol ) . An X - ray powder photograph was identical with that of the authentic material ...
Page 3661
... identical to Fig . ( b ) was obtained . A disc made white with water vapour will not be regenerated in this way ... identical to that obtained at room temperature except for a slight increase in the overall transmission . AnalaR ...
... identical to Fig . ( b ) was obtained . A disc made white with water vapour will not be regenerated in this way ... identical to that obtained at room temperature except for a slight increase in the overall transmission . AnalaR ...
Contents
NO PAGE | 2842 |
Mechanism of benzidine and semidine rearrangements Part XV A collective | 2864 |
By DAVID PETERS | 2901 |
Copyright | |
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absorption acetic acid acetone added adduct alcohol alkyl Amax Amer anhydride aqueous aromatic atom atomic orbitals band benzene bond bromine Calc carbon carbonyl cation CH₂ Chem chloroform chromatography cm.¹ complex compound concentration constant crystallised cyclohexane decomp decomposition derivatives dilute dimethyl distilled dried effect electron ester ethanol ether evaporated extracted filtered filtrate formation formed Found fraction gave give heated hydride hydrogen hydrolysis hydroxide infrared infrared spectrum iodide ionisation energies isomer kinetic light petroleum b. p. lithium lithium aluminium hydride mechanism methyl mixed m. p. mixture mole molecular molecule nitric oxide nitrogen Nujol observed obtained oxidation perchlorate phenyl potassium prepared proton pyridine reaction rearrangement reduced refluxed requires residue room temperature salt sodium sodium hydroxide solid solution solvent spectra steric steric effect structure substitution sulphate Table thionyl chloride transition ultraviolet values Vmax yield