Journal of the Chemical Society, Part 1Chemical Society., 1949 |
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Page 51
... Chem . J. , 1907 , 38 , 511 ; Gry , Bull . Soc . chim . , 1908 , 3 , 377 ) . Similarly , benzylideneacetone and chalcone give high yields of 1 : 4 - addition products with certain Grignard reagents ( Kohler , Amer . Chem . J. , 1907 ...
... Chem . J. , 1907 , 38 , 511 ; Gry , Bull . Soc . chim . , 1908 , 3 , 377 ) . Similarly , benzylideneacetone and chalcone give high yields of 1 : 4 - addition products with certain Grignard reagents ( Kohler , Amer . Chem . J. , 1907 ...
Page 94
... Chem . , 1945 , 10 , 106 , 114 , 222 ) , in which the latter appears to be present to the extent of 70-80 % ( West , J. , 1946 , 463 ) . These derivatives on hydrogenation are converted into dihydrocinerolone and tetrahydropyrethrolone ...
... Chem . , 1945 , 10 , 106 , 114 , 222 ) , in which the latter appears to be present to the extent of 70-80 % ( West , J. , 1946 , 463 ) . These derivatives on hydrogenation are converted into dihydrocinerolone and tetrahydropyrethrolone ...
Page 202
... Chem . Soc . , 1934 , 56 , 653 ) have shown that as a gas between 337 ° and 487 ° K. dioxan is non - polar ... Chem . Soc . , 1931 , 53 , 2117 ; 1932 , 54 , 3230 ) . 2 Ulich and Nespital ( Z. physikal . Chem . , 1932 , B , 16 , 229 ) . 3 ...
... Chem . Soc . , 1934 , 56 , 653 ) have shown that as a gas between 337 ° and 487 ° K. dioxan is non - polar ... Chem . Soc . , 1931 , 53 , 2117 ; 1932 , 54 , 3230 ) . 2 Ulich and Nespital ( Z. physikal . Chem . , 1932 , B , 16 , 229 ) . 3 ...
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absorption 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 concentration condensation cooled crystallised crystals curve cyanide 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 removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield