Journal of the Chemical SocietyThe Society., 1949 |
From inside the book
Results 1-3 of 81
Page 179
... anhydride ( 30 c.c. ) were heated on the steam - bath , with frequent shaking , for 1 hour . The mixture was then decomposed with hot water , filtered hot , and the residual crystalline material washed repeatedly with boiling water . As ...
... anhydride ( 30 c.c. ) were heated on the steam - bath , with frequent shaking , for 1 hour . The mixture was then decomposed with hot water , filtered hot , and the residual crystalline material washed repeatedly with boiling water . As ...
Page 257
... anhydride . This is in contrast to diphenyl which combines with one molecular proportion of the succinic anhydride ( Hey and Wilkinson , J. , 1940 , 1030 ; Weizmann , Bergmann , and Bograchov , Chem . and Ind . , 1940 , 59 , 402 ; cf ...
... anhydride . This is in contrast to diphenyl which combines with one molecular proportion of the succinic anhydride ( Hey and Wilkinson , J. , 1940 , 1030 ; Weizmann , Bergmann , and Bograchov , Chem . and Ind . , 1940 , 59 , 402 ; cf ...
Page 564
... anhydride , e.g. , with 1 mol . of ester and 2 mols . of anhydride at 150 ° , the orthoformic ester did not take part in the reaction and the only product obtained was 6 : 7 - dimethoxy - 3 - acetyl - 2 - methylchromone ( VIII , R = Me ...
... anhydride , e.g. , with 1 mol . of ester and 2 mols . of anhydride at 150 ° , the orthoformic ester did not take part in the reaction and the only product obtained was 6 : 7 - dimethoxy - 3 - acetyl - 2 - methylchromone ( VIII , R = Me ...
Other editions - View all
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