Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-996 |
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Page 154
... cooled , diluted with water ( 250 ml . ) made strongly alkaline with aqueous sodium hydroxide , and extracted with ether . The extract was washed well with water and extracted with dilute hydrochloric acid . The aqueous layer was washed ...
... cooled , diluted with water ( 250 ml . ) made strongly alkaline with aqueous sodium hydroxide , and extracted with ether . The extract was washed well with water and extracted with dilute hydrochloric acid . The aqueous layer was washed ...
Page 411
... cooled , diluted with water , and extracted with ether . Evaporation of the extract and fractional recrystallisation of the residue from ethanol gave di - p - tolylstilbene ( 0.2 g . ) , m.p. and mixed 25 m.p. 176–177 ° ( from 95 ...
... cooled , diluted with water , and extracted with ether . Evaporation of the extract and fractional recrystallisation of the residue from ethanol gave di - p - tolylstilbene ( 0.2 g . ) , m.p. and mixed 25 m.p. 176–177 ° ( from 95 ...
Page 460
... cooled and added to crushed ice ( 300 g . ) , and the resulting pre- cipitate was recrystallised from ethanol and then from light petroleum ( b.p. 60-80 ° ) to yield white needles of 4 - dimethylamino - 3,5,6 - trifluorophthalonitrile ...
... cooled and added to crushed ice ( 300 g . ) , and the resulting pre- cipitate was recrystallised from ethanol and then from light petroleum ( b.p. 60-80 ° ) to yield white needles of 4 - dimethylamino - 3,5,6 - trifluorophthalonitrile ...
Contents
Organic chemistry | 1 |
oestrone | 10 |
Heterocyclic compounds from urea derivatives Part XVI Interaction of carbonohydrazide and carbodi | 19 |
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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