Journal of the Chemical SocietyThe Society., 1948 |
From inside the book
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Page 1156
... Residue ( F ) .— A solution of this syrupy residue ( F ) ( 2 · 9 g . ) in methyl alcohol ( 30 c.c. ) containing 8 % of dry hydrogen chloride was boiled for 12 hours . The solution was neutralised with silver carbonate , filtered , and ...
... Residue ( F ) .— A solution of this syrupy residue ( F ) ( 2 · 9 g . ) in methyl alcohol ( 30 c.c. ) containing 8 % of dry hydrogen chloride was boiled for 12 hours . The solution was neutralised with silver carbonate , filtered , and ...
Page 1280
... residues may be in the form of a chain of 1 : 4 - linked mannopyranose residues ( probably of the B - configuration ) with every fifth residue substituted at C. by a D - galactopyranose residue ( A ) or , groups of four 1 : 4 - ẞ ...
... residues may be in the form of a chain of 1 : 4 - linked mannopyranose residues ( probably of the B - configuration ) with every fifth residue substituted at C. by a D - galactopyranose residue ( A ) or , groups of four 1 : 4 - ẞ ...
Page 2200
... residue extracted with water . The water - insoluble material was unchanged starting material ( 0-33 g . ) . The aqueous extract was evaporated to dryness , and then extracted with chloroform . This extract was evaporated , and the residue ...
... residue extracted with water . The water - insoluble material was unchanged starting material ( 0-33 g . ) . The aqueous extract was evaporated to dryness , and then extracted with chloroform . This extract was evaporated , and the residue ...
Contents
acetic acid | 963 |
The isolated base 2 5 g m p 125 with frothing was readily soluble in most organic solvents | 6 |
addition of zinc dust 0 2 g during 15 minutes followed by heating on the steambath for hour | 114 |
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Common terms and phrases
4-trimethyl absorption acetic anhydride acetone acetyl added alcohol alkaline Amer amine ammonia atoms bands benzaldehyde benzene boiling bromine Calc carbon CH₂ Chem chloroform colourless needles compound concentrated hydrochloric acid condensation cooled crystallised crystals D.Sc decomp derivative diazotised dilute dissolved distilled dried electrons energy equiv ester ethanol ether ethyl acetate evaporated experimental extracted filtered filtrate formation formed Found fraction gave give glacial acetic acid heated hydrocarbon hydrochloric acid hydrogen chloride hydrolysis iodine isolated ketone light petroleum m. p. and mixed method methyl mixed m. p. mixture molecular molecule nitrogen obtained orbitals oxidation polysaccharide potassium hydroxide precipitated prepared prisms proflavine pyridine reaction refluxed removed requires residue resonance room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure substance sulphate sulphuric acid surface vacuum values washed yellow needles yield