Journal of the Chemical Society, Part 4The Society., 1949 |
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Page 2754
... Methyltetrahydrothiapyran - 4 - ol ( VI ) . To an ethereal solution of methylmagnesium iodide , prepared from magnesium ( 7 g . ) and methyl iodide ( 36 g . ) , was added rapidly at 0 ° tetrahydrothiapyran - 4 - one ( 20 g . ) in ether ...
... Methyltetrahydrothiapyran - 4 - ol ( VI ) . To an ethereal solution of methylmagnesium iodide , prepared from magnesium ( 7 g . ) and methyl iodide ( 36 g . ) , was added rapidly at 0 ° tetrahydrothiapyran - 4 - one ( 20 g . ) in ether ...
Page 2755
... Methyl Iodide . — Interaction of 2 : 2 : 4 : 6 : 6- pentamethyl - A3 - dihydrothiapyran ( 0.85 g . ) with methyl iodide ( 2.15 g . ) gave no product after 3 days at 0 ° ; after 20 minutes at 100 ° and then 5 hours at 50 ° a tar was ...
... Methyl Iodide . — Interaction of 2 : 2 : 4 : 6 : 6- pentamethyl - A3 - dihydrothiapyran ( 0.85 g . ) with methyl iodide ( 2.15 g . ) gave no product after 3 days at 0 ° ; after 20 minutes at 100 ° and then 5 hours at 50 ° a tar was ...
Page 2756
... iodide , though the action of the latter is still catalytic . Diethyldi - iodosilane reacts very slowly with further ... methyl iodide , with little gas formation . Methyltri - n - propylsilane , on the other hand , gives only a ...
... iodide , though the action of the latter is still catalytic . Diethyldi - iodosilane reacts very slowly with further ... methyl iodide , with little gas formation . Methyltri - n - propylsilane , on the other hand , gives only a ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol alkaline aluminium chloride aluminium iodide Amer amine ammonia aqueous sodium atom benzaldehyde benzene boiling bond bromide bromine trifluoride Calc carbon CH₂ Chem chloroform colourless needles compound concentrated condensation containing cooled crystallised crystals D.Sc decomp decomposition derivatives diazotised dilute dioxan dissolved distilled dried ester ethanol ethyl alcohol extracted with ether filtered filtrate formation formed Found fraction gave Grignard reagent halide heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated ketone light petroleum b. p. liquid method methyl methyl iodide minutes mixture molecule nitrate nitrogen obtained oxidation phenol picrate potassium precipitate prepared prisms pyridine reaction reagent recrystallised from ethanol reduced pressure removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent sulphate sulphone sulphuric acid synthesis Table tube values washed yield