Journal of the Chemical SocietyThe Society., 1949 |
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Page 254
... hydrogen bromide in acetic acid ( 700 g . ) and kept at 35 ° for 9 hours . The 16 - dibromide ( 25 g . ) was collected and recrystallised from acetic acid in prisms , m . p . 200o . Action of Hydrogen Bromide on Hexa - acetyl Sorbitol ...
... hydrogen bromide in acetic acid ( 700 g . ) and kept at 35 ° for 9 hours . The 16 - dibromide ( 25 g . ) was collected and recrystallised from acetic acid in prisms , m . p . 200o . Action of Hydrogen Bromide on Hexa - acetyl Sorbitol ...
Page 297
... bromide would also be included in this class , and special mechanisms involving an initial attack by chloride ions ... hydrogen bromide , and we have produced evidence , mainly from the effect of constitution of the olefin on the rate of ...
... bromide would also be included in this class , and special mechanisms involving an initial attack by chloride ions ... hydrogen bromide , and we have produced evidence , mainly from the effect of constitution of the olefin on the rate of ...
Page 513
... hydrogen bromide to 1 : 1 - diphenylbut - 3 - enyl cyanide ( XII ) has been described above . Attempts to increase the yield of 3 - bromo - 1 : 1 - diphenylbutyl cyanide by heating the unsaturated compound with 50 % hydrogen bromide in ...
... hydrogen bromide to 1 : 1 - diphenylbut - 3 - enyl cyanide ( XII ) has been described above . Attempts to increase the yield of 3 - bromo - 1 : 1 - diphenylbutyl cyanide by heating the unsaturated compound with 50 % hydrogen bromide in ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added addition alkaline aluminium aluminium chloride Amer ammonia anhydride atom benzene boiling bond bromide Calc carbon catalyst CH₂ Chem chloroform colourless needles compound concentrated condensation cooled crystallised crystals curve cyanide D.Sc decomp decomposition derivatives dilute dissolved distilled disulphide dried ester ethyl acetate ethyl alcohol ethylene evaporated extracted with ether filtered filtrate formed Found fraction gave give m. p. heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone kojic acid light petroleum b. p. m. p. and mixed methanol method mixed m. p. mixture molecule obtained oxide phenyl picrate potassium hydroxide precipitated prepared prisms pyridine reaction reagent reduced pressure refluxed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield