Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-996 |
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Page 234
... filtrate was taken to dryness at 30 ° , and the residue was heated under reflux with chloroform ( 10 ml . ) for 10 min .; the solution was filtered and the filtrate was taken to dryness . The residue was ground under 1N- sodium ...
... filtrate was taken to dryness at 30 ° , and the residue was heated under reflux with chloroform ( 10 ml . ) for 10 min .; the solution was filtered and the filtrate was taken to dryness . The residue was ground under 1N- sodium ...
Page 587
... filtrate and washings were reduced in volume under reduced pressure and applied to a column ( 20 x 2.5 cm . ) of silica gel . Elution with benzene gave tetracyclone ( 0.052 g . , 27 % recovery ) ; elution with benzene - chloroform gave ...
... filtrate and washings were reduced in volume under reduced pressure and applied to a column ( 20 x 2.5 cm . ) of silica gel . Elution with benzene gave tetracyclone ( 0.052 g . , 27 % recovery ) ; elution with benzene - chloroform gave ...
Page 967
... filtrate was washed successively with water , dilute sulphuric acid , water , aqueous potassium hydrogen carbon- ate , and water again , dried , and evaporated to dryness . The crystalline residue was dissolved in warm ethyl acetate ...
... filtrate was washed successively with water , dilute sulphuric acid , water , aqueous potassium hydrogen carbon- ate , and water again , dried , and evaporated to dryness . The crystalline residue was dissolved in warm ethyl acetate ...
Contents
Organic chemistry | 1 |
oestrone | 10 |
Heterocyclic compounds from urea derivatives Part XVI Interaction of carbonohydrazide and carbodi | 19 |
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Common terms and phrases
absorption acetic acid acetone added adduct alcohol alumina Amer aqueous aromatic band benzene boiled bromide Calc CH₂ chalcone Chem chim chloride chloroform chromatography cm.¹ colourless compound cooled crystallised cyclisation cyclohexane decomp derivatives diluted dimethyl dimethylformamide dioxan distilled doublet dried eluted ester ethanol ethyl acetate EtOH evaporated extracted with ether filtered filtrate Found fraction gave give heated under reflux hydrochloric acid hydrolysis i.r. spectrum identical irradiation isolated isomer ketone light petroleum b.p. lithium aluminium hydride mass spectra methylene mixed m.p. mixture mmoles mole n.m.r. spectrum needles nitrogen Nujol obtained olefin oxidation peak phosphine potassium prepared protons pyridine reaction reagent rearrangement reduced pressure reflux requires residue ring room temperature showed signals silica gel singlet sodium hydroxide solid solution solvent stirred structure synthesis Table tetrahydrofuran VIII yellow yield zygosporin