Journal of the Chemical Society, Part 3Chemical Society., 1949 |
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Results 1-3 of 77
Page 1736
... prisms , m . p . 131-133 ° ( Found : C , 52-1 ; H , 5 · 7 ; N , 21.6 . C11H15ON Cl requires C , 51.9 ; H , 5 · 9 ; N , 22 · 0 % ) ( 6045 ) . = ( b ) N1 - p - Chlorophenyl - N - isopropyldiguanide hydrochloride ( 2 · 53 g . ) was ...
... prisms , m . p . 131-133 ° ( Found : C , 52-1 ; H , 5 · 7 ; N , 21.6 . C11H15ON Cl requires C , 51.9 ; H , 5 · 9 ; N , 22 · 0 % ) ( 6045 ) . = ( b ) N1 - p - Chlorophenyl - N - isopropyldiguanide hydrochloride ( 2 · 53 g . ) was ...
Page 1864
... prisms . On cooling a further crop of prisms separated ; this was collected after 1 hour and had m . p . 105-108 ° , [ a ] -76 ° ( c , 1 ) . The mother - liquor was concentrated to about 10 c.c. and kept at 0 ° overnight ; a crop of ...
... prisms . On cooling a further crop of prisms separated ; this was collected after 1 hour and had m . p . 105-108 ° , [ a ] -76 ° ( c , 1 ) . The mother - liquor was concentrated to about 10 c.c. and kept at 0 ° overnight ; a crop of ...
Page 1975
... Prisms ( Oil ) 138 Prisms 48 Prisms 107-108 Needles 62-64 Prisms 109-110 Flattened 109-110 68-70 needles Long needles Thick plates 117-119 Small prisms C - E 94-97 Prisms 84 Needles 112 Plates 132 Short needles 93 Short needles 134-136 1 ...
... Prisms ( Oil ) 138 Prisms 48 Prisms 107-108 Needles 62-64 Prisms 109-110 Flattened 109-110 68-70 needles Long needles Thick plates 117-119 Small prisms C - E 94-97 Prisms 84 Needles 112 Plates 132 Short needles 93 Short needles 134-136 1 ...
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acetic acid acetic anhydride acetone acetyl added admixture alkaline alkyl aluminium chloride Amer ammonia aqueous solution atoms barium benzene boiling bromine Calc carbinol carbon catalyst Chem Chim chloroform colourless needles compound concentrated condensation cooled crystals cyclohexene decomp derivatives dilute dioxan dissolved distilled dithizone dried equiv ester ethanol ethyl acetate ethyl alcohol ethylene evaporated EXPERIMENTAL filtered filtrate formed Found fraction gave give heated under reflux hydrocarbon hydrochloric acid hydrogen chloride hydrolysis iodide ions isolated ketone Light absorption light petroleum b. p. method methyl mixed m. p. mixture molecule obtained oxide phenyl plates potassium hydroxide precipitated prepared pressure prisms pyridine Q-enzyme R₁ R₂ reaction reagent reduced removed requires residue room temperature salt semicarbazone separated sodium hydroxide solid soluble solvent specimen structure substance sulphate sulphone sulphuric acid synthesis Table unsaturated washed yield