Journal of the Chemical SocietyThe Society., 1955 |
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Page 88
... filtered after 1 hr . The filtrate was boiled gently until crystals appeared , filtered , and heated further to ensure maximum recovery of hydrolysis product . The crystals ( 1-7 g . , 74 % ) melted at 169 ° ( rapid heating ) followed ...
... filtered after 1 hr . The filtrate was boiled gently until crystals appeared , filtered , and heated further to ensure maximum recovery of hydrolysis product . The crystals ( 1-7 g . , 74 % ) melted at 169 ° ( rapid heating ) followed ...
Page 464
... filtered off , and extracted with ammonia , and the extract ( charcoal ) acidified . The precipitated meso- benzanthronecarboxylic acid mixture , crystallised from nitrobenzene , had m . p . > 350 ° ; esterification gave two fractions ...
... filtered off , and extracted with ammonia , and the extract ( charcoal ) acidified . The precipitated meso- benzanthronecarboxylic acid mixture , crystallised from nitrobenzene , had m . p . > 350 ° ; esterification gave two fractions ...
Page 583
... filtered off and the solution neutralised with barium carbonate . soluble material was filtered off and the filtrate evaporated under reduced pressure to a white solid ( 610 mg . ) , [ a ] 20−2 · 5 ° ( c , 3.0 in MeOH ) . In- D ...
... filtered off and the solution neutralised with barium carbonate . soluble material was filtered off and the filtrate evaporated under reduced pressure to a white solid ( 610 mg . ) , [ a ] 20−2 · 5 ° ( c , 3.0 in MeOH ) . In- D ...
Contents
The Chemistry of Nitrosyl Complexes Part I Evidence for the Selfionisation | 56 |
The Senecio Alkaloids Part XII The Synthesis of erythro3Hydroxy2methoxy | 65 |
Experiments on the Synthesis of Tetrahydroworenine | 79 |
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acetic acid acetic anhydride acetone alcohol alkaline Amer anhydride aqueous sodium atom band benzene boiling bromide Calc carbon carbonyl Chem chloroform colour colourless colupulone complex compound concentration cooled crystallised crystals curve cyclohexanone D.Sc decomp derivatives dibromide dilute dioxide dissolved distilled dried ester ethanol ether ethyl acetate EtOH evaporated EXPERIMENTAL extracted filtered formation formed Found fraction gave give H₂O heated hydrochloric acid hydrogen chloride hydrolysis infra-red iodide iodine kcal./mole ketone light petroleum b. p. m. p. and mixed method methyl mixed m. p. mixture mole molecules needles nitrate nitrogen obtained oxidation oxidised oxygen phenol potassium potassium hydroxide precipitate prepared prisms pyridine reaction reagent refluxed Reprint Order requires residue room temperature salt scandium sodium hydroxide solid soluble solution solvent solvolysis spectra spectrum structure sulphate sulphuric acid Table tube values yield