Quarterly Journal of the Chemical Society of London, Volume 11 |
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Page 2026
... reflux for 3 hr . with 10 , 20 , 30 , and 40 % aqueous dioxan the yields of cholesteryl dihydrogen phosphate and chloride were 31 , 35 , 38 , 50 , and 22 , 20 , 18 , 18 % respectively . ( b ) With aqueous dioxan - pyridine . Cholesteryl ...
... reflux for 3 hr . with 10 , 20 , 30 , and 40 % aqueous dioxan the yields of cholesteryl dihydrogen phosphate and chloride were 31 , 35 , 38 , 50 , and 22 , 20 , 18 , 18 % respectively . ( b ) With aqueous dioxan - pyridine . Cholesteryl ...
Page 2161
... reflux with aqueous 40 % w / v sodium hydroxide solution ( 8.0 ml ) for 10 min or with piperidine ( 0-2 ml ) for 27 h . The ethanol was removed under reduced pressure and the gum obtained was treated with water or with ether - light ...
... reflux with aqueous 40 % w / v sodium hydroxide solution ( 8.0 ml ) for 10 min or with piperidine ( 0-2 ml ) for 27 h . The ethanol was removed under reduced pressure and the gum obtained was treated with water or with ether - light ...
Page 2162
... reflux with piperid- ine ( 1.0 ml ) in ethanol ( 150 ml ) for 168 h and the mixture worked up as described before . Heating the triazolo- pyrimidine ( 11a ) under reflux in glacial acetic acid ( alone or containing acetyl chloride ) ...
... reflux with piperid- ine ( 1.0 ml ) in ethanol ( 150 ml ) for 168 h and the mixture worked up as described before . Heating the triazolo- pyrimidine ( 11a ) under reflux in glacial acetic acid ( alone or containing acetyl chloride ) ...
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