Quarterly Journal of the Chemical Society of London, Part 3, Pages 1153-2704 |
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Page 1301
... hydrogen carbonate . Sodium nitrite ( 15 g . ) was added and the solution heated under reflux for 3 hr . Ether extraction gave a residue ( 5.6 g . ) consisting of isomeric chloronitro- benzenes ( 1.8 g . , 76 % ) and chloroiodobenzenes ...
... hydrogen carbonate . Sodium nitrite ( 15 g . ) was added and the solution heated under reflux for 3 hr . Ether extraction gave a residue ( 5.6 g . ) consisting of isomeric chloronitro- benzenes ( 1.8 g . , 76 % ) and chloroiodobenzenes ...
Page 1360
... hydrogen methylphos- phonate ( Found : Equiv . , 180. Calc .: Equiv . , 180 ) . ( ii ) Di - t - butyl ... hydrogen methylphosphonate ( 1.3 g . , 72 % ) , b . p . 116-118 ° / 0.2 mm . In an analogous way 2 - butyl hydrogen ...
... hydrogen methylphos- phonate ( Found : Equiv . , 180. Calc .: Equiv . , 180 ) . ( ii ) Di - t - butyl ... hydrogen methylphosphonate ( 1.3 g . , 72 % ) , b . p . 116-118 ° / 0.2 mm . In an analogous way 2 - butyl hydrogen ...
Page 1596
... hydrogen atoms in the 2- and 3 - positions shows that these atoms are trans - diaxially disposed . The low value of J2,3 then shows that these hydrogen atoms are cis to each other , and the geometry is as shown in ( XIII ) ( cf. 1 , 2 ) ...
... hydrogen atoms in the 2- and 3 - positions shows that these atoms are trans - diaxially disposed . The low value of J2,3 then shows that these hydrogen atoms are cis to each other , and the geometry is as shown in ( XIII ) ( cf. 1 , 2 ) ...
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absorption acetic acid acetone acetyl adduct alcohol alumina Amer amine anhydride aqueous aromatic ation atom benzene bromide Calc carbon carbonyl CH₂ Chem chloride chloroform chromatography cm.¹ compound cooled crystallised decomp derivative dilute dimethyl distilled doublet dried eluted ester ethanol ethyl acetate evaporated extracted with ether filtered filtrate formed Found fraction gave give heated under reflux hydrochloric acid hydrogen hydrolysis infrared spectrum irradiated isolated isomer ketone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl ether mixed m. p. mmoles mole multiplet n.m.r. spectrum needles nitrogen obtained oxide phenyl potassium potassium hydroxide prepared protons pyridine quinone reaction mixture reduced pressure reduction requires residue ring room temperature silica gel singlet sodium borohydride sodium hydroxide solution solvent spectra stirred structure sulphuric acid VIII washed yellow yield