Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-996 |
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Page 454
... solid . This was chromatographed in benzene ( 50 % ) in light petroleum ( b.p. 60-80 ° ) and gave starting material ( 0.10 g . , 3 % ) and a solid ( 3.1 g . ) , m.p. 163-165 ° , which was recrystallised from light petroleum ( b.p. 80 ...
... solid . This was chromatographed in benzene ( 50 % ) in light petroleum ( b.p. 60-80 ° ) and gave starting material ( 0.10 g . , 3 % ) and a solid ( 3.1 g . ) , m.p. 163-165 ° , which was recrystallised from light petroleum ( b.p. 80 ...
Page 500
... solid was filtered off , washed with dimethylform- amide , and quickly sucked dry . The hygroscopic solid was added to potassium hydroxide solution ( 10 % ; 100 ml . ) and refluxed for 3 hr . 3 - Formyl - 1,6 - diazaindene separated ...
... solid was filtered off , washed with dimethylform- amide , and quickly sucked dry . The hygroscopic solid was added to potassium hydroxide solution ( 10 % ; 100 ml . ) and refluxed for 3 hr . 3 - Formyl - 1,6 - diazaindene separated ...
Page 857
... solid was : filtered off ; the mother liquor was concentrated and chilled to give a further crop . The solid was washed with ether and crystallized from acetonitrile to give compound ( Ib ) ( 8.8 g . , 53 % ) as needles , m.p. 109-110 ...
... solid was : filtered off ; the mother liquor was concentrated and chilled to give a further crop . The solid was washed with ether and crystallized from acetonitrile to give compound ( Ib ) ( 8.8 g . , 53 % ) as needles , m.p. 109-110 ...
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