Journal of the Chemical SocietyThe Society., 1961 |
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Page 4942
... Crystals separated from the cooled liquid . The mixture was digested with warm ether ( 25 ml . ) and cooled to 0 ° , and the crystals ( 1.88 g . ) , m . p . 135—137 ° , were collected . Recrystallisation from methanol afforded ...
... Crystals separated from the cooled liquid . The mixture was digested with warm ether ( 25 ml . ) and cooled to 0 ° , and the crystals ( 1.88 g . ) , m . p . 135—137 ° , were collected . Recrystallisation from methanol afforded ...
Page 5130
... crystals ( ca. 30 mg . ) , m . p . 238 ° ( Found : C , 37.1 ; H , 2.8 % ) , that may be a mixture of the two iodo ( triphenylphosphine ) mercury ( 11 ) complexes . ( 5 ) Tetramethylphosphonium pentaiododimercurate ( 11 ) ( 1 · 13 g ...
... crystals ( ca. 30 mg . ) , m . p . 238 ° ( Found : C , 37.1 ; H , 2.8 % ) , that may be a mixture of the two iodo ( triphenylphosphine ) mercury ( 11 ) complexes . ( 5 ) Tetramethylphosphonium pentaiododimercurate ( 11 ) ( 1 · 13 g ...
Page 5471
... Crystals of octamethylcyclotetraphosphonitrile , recrystallised from light petroleum , were kindly prepared by Searle . Small equant crystals of maximum dimension 0.30 mm . were sealed inside a thin - walled glass capillary tube , to ...
... Crystals of octamethylcyclotetraphosphonitrile , recrystallised from light petroleum , were kindly prepared by Searle . Small equant crystals of maximum dimension 0.30 mm . were sealed inside a thin - walled glass capillary tube , to ...
Contents
NO PAGE | 4269 |
NO PAGE | 4290 |
The existence of the P¹P¹diethyl pyrophosphate | 4321 |
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absorption acetic acid acetic anhydride acetone added alcohol alkaline alumina Amer amine ammonia atom band benzene benzoyl chloride bond bromide Calc carbonate carbonyl CH₂ Chem chloride chloroform chromatography cm.¹ complex compound concentration constant cooled crystallised crystals decomp derivative diethyl dilute dimer diol dioxan distilled dried eluted ester ethanol ethyl acetate evaporated EXPERIMENTAL ferrocene filtered filtrate formed Found fraction gave give H₂O heated hydrochloric acid hydrolysis hydroxyl infrared infrared spectrum iodide isolated isomer ketone lactone lithium aluminium hydride m. p. and mixed mixed m. p. mixture mole molecules needles nitrate nitrobenzene nitrogen obtained oxidation potassium precipitate prepared prisms proton pyridine reaction reactivity reagent reduced refluxed requires residue room temperature salt sodium hydroxide solid soluble solution solvent spectra steric stirred structure substituents sulphuric acid Table tetrahydrofuran triarsine ultraviolet values washed yellow yield