Quarterly Journal of the Chemical Society of London, Volume 11 |
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Results 1-3 of 77
Page 2068
... hydroxide ( 40 ml . ) at 0-5 ° during 5 min . The ice - bath was then removed and the mixture was stirred at 25 ° for 2 hr . , extracted with ether ( 3 × 25 ml . ) , and made acidic by the dropwise addition in the cold of concentrated ...
... hydroxide ( 40 ml . ) at 0-5 ° during 5 min . The ice - bath was then removed and the mixture was stirred at 25 ° for 2 hr . , extracted with ether ( 3 × 25 ml . ) , and made acidic by the dropwise addition in the cold of concentrated ...
Page 2090
... hydroxide [ from potassium hydroxide ( 0-4 g ) in water ( 0-4 ml ) diluted with ethanol ( 12 ml ) ] was added hydrazine hydrate ( 0-23 g , 4-6 mmol ) followed by 5 % ( w / w ) ruthenium on carbon ( 10 mg ) ; the mixture was stirred and ...
... hydroxide [ from potassium hydroxide ( 0-4 g ) in water ( 0-4 ml ) diluted with ethanol ( 12 ml ) ] was added hydrazine hydrate ( 0-23 g , 4-6 mmol ) followed by 5 % ( w / w ) ruthenium on carbon ( 10 mg ) ; the mixture was stirred and ...
Page 2689
... Hydroxide . The dihydrobis- ( p- methoxyphenyl ) pyrazine ( 2-3 g ) was treated with potassium hydroxide ( 1.2 g ) in ethanol ( 20 ml ) and worked up as for dihydrodiphenylpyrazine , yielding 5,5 ′ , 6,6 ' - tetrakis- ( p - meth ...
... Hydroxide . The dihydrobis- ( p- methoxyphenyl ) pyrazine ( 2-3 g ) was treated with potassium hydroxide ( 1.2 g ) in ethanol ( 20 ml ) and worked up as for dihydrodiphenylpyrazine , yielding 5,5 ′ , 6,6 ' - tetrakis- ( p - meth ...
Contents
Organic chemistry | 2023 |
Constituents of Withania somnifera Dun Part XII The withanolides of an Indian chemotype | 2032 |
Cyclic hydroxamic acids Part I Synthesis and reactions of 12dihydro1hydroxy46dimethyl2oxo | 2044 |
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acetic acid acetic anhydride acetone acetyl alcohol aldehyde alumina Amer amine ammonia anhydride anhydrous aqueous aromatic atom benzene benzyl bromide CH₂ Chem chloride chloroform chromatographed cm.¹ cm¯¹ cm¹ compound cooled crystallised cyclisation decomp derivative dichloromethane dilute dimer dimethyl dimethylformamide dioxan dried eluted ester ethanol ethyl acetate evaporated extracted with ether filtered filtrate Found gave give heated under reflux hydrochloric acid hydrolysis hydroxide i.r. spectrum iodide isolated isomer ketone lithium aluminium hydride methyl mixed m.p. mixture was stirred mmHg mmol mmole mole n.m.r. spectrum needles nitrogen obtained olefinic oxidation peroxide phenol potassium prepared protons pyridine reaction reduction reflux requires residue ring room temperature salt signals singlet sodium borohydride sodium hydroxide solid solution solvent spectra structure synthesis tetrahydrofuran treatment yield