Lithium chloride-Hexamethylphosphoric

SPIR0ANNELAT10N Lithium chloride-Hexamethylphosphoric triamide. N-Methyl-N-phenylaminoacetylene. (EE a(Trimethylsilyl)vinyllithium. [Pg.471]

Related Reagents. A(,A(-Diitiethylformaniide N,N -Dimethylpropyleneurea Dimethyl Sulfoxide Hexam-ethylphosphoric Triamide-Thionyl Chloride Lithium Chloride-Hexamethylphosphoric Triamide l-Methyl-2-pyrrolidinone Potassium t-Butoxide-Hexamethylphosphorie Triamide Potassium Hydride-Hexamethylphosphorie Triamide Potassium Hydroxide-Hexamethylphosphoric Triamide A(,A( -Tetramethylethylenediamine. [Pg.212]

Related Reagents. Lithium Chloride-Diisopropylethyl-amine Lithium Chloride-Hexamethylphosphoric Triamide Zinc Chloride. [Pg.249]

The first displacement reaction at C-2 position in carbohydrates was achieved during the study of sulfuryl chloride reaction with sucrose (92). Treatment of 3,4,6,3, 4, 6 -hexa-0-acetylsucrose 2,l -bis(chlorosulfate) with lithium chloride in hexamethylphosphoric triamide at 80°C for 20 h led to the corresponding 2,l -maimo derivative in 73% yield. [Pg.34]

Heating a mixture of methyl chlorodifluoroacetate, lithium chloride and hexamethylphosphoric triamidc in dichloromethane at reflux, or in diglyme at 80 C. results in the generation of difluorocarbene under relatively mild nonbasic conditions.7 Alternatively, difluorocarbene can... [Pg.498]

Bromination of an olefin and double dehydrobromination of the resulting 1,2-dibromide is a classical method for the generation of 1,3-dienes (Table 1). Bromination of a double bond can be done with molecular bromine or, more conveniently, with pyridinium bromide perbromide . A variety of bases has been employed for dehydrobromination. While potassium hydroxide and sodium methoxide have been used for a long time, lithium carbonate-lithium chloride in DMF or hexamethylphosphoric triamide (HMPA) works well in many cases . Double dehydrobromination with hindered bases such as potassium r-butoxide or diazabicyclononene (DBN) and diazabicycloundecene (DBU) give good results. [Pg.364]

The decomposition of diazotates may also be induced by Lewis acids. Solution of (152) in hexamethylphosphoric triamide are slowly decomposed by excess lithium azide or lithium chloride with the formation of inverted 2-octyl azide and chloride, respectively, along with retained 2-octanol1491. Diazotates are readily decomposed by acylation. Although the intermediate diazoesters (125) should be identical with those generated by thermolysis of nitrosoamides, differences in stereochemistry and product distribution were noticed which may be due to the heterogeneity of the diazotate system149-15 D... [Pg.167]

Methyl chlorodifiuoroacetate decomposes to difluorocarbene on reaction with lithium chloride complexed with hexamethylphosphoric triamide or potassium fluoride with 18-crown-6 (Houben-Weyl, Vol. El 9b, p 1478), for example, formation of 13. ... [Pg.601]

Dehydrohalogenation Alumina, see Sulfur tetrafluoride. Alumina-Potassium hydroxide. Cesium fluoride. l,5-Diazabicyclo[4.3.0]nonene-5. l,4-Diazabicyclo[2.2.2]octane. 1,5-Diazabicyclo[5.4.0]undecene-5. Dimethylaminotrimethylstannane. Dimethyl sulfoxide. Hexamethylphosphoric triamide. Lithium chloride. Lithium dicyclohexylamide. Magnesium oxide. Potassium r-butoxide. Potassium fluoride. Potassium triethylmethoxide. Pyridine, see Nitrosyl chloride. Silver fluoride. Silver nitrate. Sodium amide. Sodium bicarbonate, see Nitryl iodide. Sodium isopropoxide. Triethylamine, see Sulfur dioxide. [Pg.241]

Neopentyl tosylate reacts with lithium chloride in hexamethylphosphoric triamide (HMPA) and gives the chloride with clean inversion and without rearrangement21. The Mitsunobu procedure22-24 uses the strong oxophilicity of phosphorus for the activation. In this reaction, alcohols are converted to the corresponding halides with inversion of configuration by lithium salts24. [Pg.1167]

DIKETONES 3-Benzyl-5-(2-hydroxyethyl)-4-methyl-l, 3-thiazolium chloride. Bis(methylthio)(trimethylsilyl)methyllithium. Cupric chloride. Di(a-methoxy-vinyl)copperlithium. Lithium diethylamide-Hexamethylphosphoric triamide. [Pg.787]

CYCLOPROPANF.S Benzyltriethylammonium chloride. Dicobalt octacarbonyl. Lithium diethylamide-Hexamethylphosphoric triamide. Lithium diisoptopylamido-Hexa-methylphosphoric triamide. [Pg.469]

The morphology of poly(p-phenylene terephthalamidc) crystallized from solution in sulphuric acid, hexamethylphosphoric triamide-A-methylpyrrolidone-2— lithium chloride solution, and coagulated with a variety of non-solvents, shows... [Pg.64]

Lithium chloride I hexamethylphosphor amide Decarbalkoxylative C-alkylation... [Pg.208]

Alkanetellurolates, that can be obtained from an organic lithium compound or a Grignard reagent and tellurium, are oxidized to dialkyl ditellurium compounds on contact with air. Di-t-butyl ditellurium, that is difficult to prepare by other routes, was obtained by this method in excellent yield1 2. The reaction of /-butyl magnesium chloride with tellurium proceeded in THF solution only in the presence of hexamethylphosphoric triamide2. [Pg.264]

ALKYLATION Benzyltiiethylammonium chloride. n-Butyl mercaptan. Dialkylcar-bonium fluoroborates. Diethoxycarboni-um fluoroborate. Dimethylcopperlithium. Ethyl vinyl ether. Dimethylformamidc dimethyl acetal. Dimethyl sulflde. Dimeth-ylsulfonium methylide. Ethyl chlorofor-mate. Hexamethylphosphoric tiiamide. Lithium diisopropylamide. Lithium N-iso-propylcyclohexylamide. O-Methyldiben-zofuranium fluoroborate. Methyl fluoro-sulfonatc. Naththalene-Sodium. Palladi-um(II) chloride. 1,2,2,6,6-PentamelhyI-pipetidine. Potassium hydroxide. Silver oxide. Sodium bis-2-mcthoxyethoxyaIu-minum hydride. Sodium hydride. Thai-lous ethoxide. [Pg.581]

DEHALOGENATION Diiron nonacarbonyl. Lithium amalgam. Phenanthrene-Sodiiim. Sodium thiosulfate. Triethyl phosphite. DEHYDRATION Alumina. Boron trifluo-ride n-butyl etherate. Dimethyl sulfoxide. Hexamethylphosphoric triamide. Iodine. Methyl N-sulfonylurethane triethylamine complex. Phosphonitrilic chloride. Thio-nyl chloride. Triphenylphosphite methio-dide. [Pg.629]

Reducing agents Aluminum hydride. Bis-3-methyl-2-butylborane. n-Butyllithium-Pyridine. Calcium borohydride. Chloroiridic acid. Chromous acetate. Chromous chloride. Chromous sulfate. Copper chromite. Diborane. Diborane-Boron trifluoride. Diborane-Sodium borohydride. Diethyl phosphonate. Diimide. Diisobutylaluminum hydride. Dimethyl sulfide. Hexamethylphosphorous triamide. Iridium tetrachloride. Lead. Lithium alkyla-mines. Lithium aluminum hydride. Lithium aluminum hydride-Aluminum chloride. Lithium-Ammonia. Lithium diisobutylmethylaluminum hydride. Lithium-Diphenyl. Lithium ethylenediamine. Lithium-Hexamethylphosphoric triamide. Lithium hydride. Lithium triethoxyaluminum hydride. Lithium tri-/-butoxyaluminum hydride. Nickel-aluminum alloy. Pyridine-n-Butyllithium. Sodium amalgam. Sodium-Ammonia. Sodium borohydride. Sodium borohydride-BFs, see DDQ. Sodium dihydrobis-(2-methoxyethoxy) aluminate. Sodium hydrosulflte. Sodium telluride. Stannous chloride. Tin-HBr. Tri-n-butyltin hydride. Trimethyl phosphite, see Dinitrogen tetroxide. [Pg.516]

Borabicyclo[3.3. l]nonane Butylated hydroxytoluene 3,4-Dihydro-2//-pyran Diisobutylaluminum hydride V,jV-Dimethylformamide Dimethyl sulfoxide Hexamethylphosphoric triamide Lithium aluminum hydride Lithium diisopropylamide Minimum inhibitory concentration Pyridinium chlorochromate Pyridinium dichromate S-adenosylmethionine Tetrabutylammonium fluoride tert-Butyldimethylsilyl tert-Butyldimethylsilyl chloride Tetrahydrofuran Trimethylsilyl cyanide... [Pg.91]