Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-996 |
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Results 1-3 of 79
Page 68
... pyridine tribromide 17 or from the absorption of hydrogen bromide by the pyridine so that it is unavailable for reaction with the pentenes produced , which in any case are formed to a smaller extent in the presence of pyridine . It ...
... pyridine tribromide 17 or from the absorption of hydrogen bromide by the pyridine so that it is unavailable for reaction with the pentenes produced , which in any case are formed to a smaller extent in the presence of pyridine . It ...
Page 186
... pyridine 36 POCI , -pyridine 74 26 ( 16 hr . at 25 ° ) POCI , -pyridine 60 40 ( 2 hr . at 100 ° ) 88 a 87 a 13 95 128 - OH ( equatorial ) 12a - Cl ( probable configuration ) SOCI1 - pyridine ( 30 min . at 25 ° ) SOCl2 - pyridine ( 2 hr ...
... pyridine 36 POCI , -pyridine 74 26 ( 16 hr . at 25 ° ) POCI , -pyridine 60 40 ( 2 hr . at 100 ° ) 88 a 87 a 13 95 128 - OH ( equatorial ) 12a - Cl ( probable configuration ) SOCI1 - pyridine ( 30 min . at 25 ° ) SOCl2 - pyridine ( 2 hr ...
Page 516
... pyridine ( 150 ml . ) . The temperature rose to 75-80 ° . After 22 hr . , the mixture was treated with potassium hydroxide ( 85 % ; 59-4 g . ) in water ( 100 ml . ) and potassium carbonate ( 5 g . ) in water ( 20 ml . ) . The pyridine ...
... pyridine ( 150 ml . ) . The temperature rose to 75-80 ° . After 22 hr . , the mixture was treated with potassium hydroxide ( 85 % ; 59-4 g . ) in water ( 100 ml . ) and potassium carbonate ( 5 g . ) in water ( 20 ml . ) . The pyridine ...
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