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Lithium aluminum hydride-chromium chloride

ALLENES Alkyllithium reagents. Chromium(HI) chloride-Lithium aluminum hydride. Formaldehyde. N,N-Mcthylphcnylamino(tri-n-butylphos-phonium) iodide. Tricthyl orthoaeetate. Trimethylsilylm ethyEmagncsium chloride. [Pg.471]

Chromium(III) chloride-Lithium aluminum hydride, 84 Dialkylaluminum amides, 206 Diazomethane-Alumina, 14 Dibromoalane, 237... [Pg.405]

HOMOALLYLIC ALCOHOLS Cerium amalgam. Chromium(II) chloride. Fluorodimethoxyborane. Hypochlorous acid. Lithium bronze. Manganesc(II) chloride-Lithium aluminum hydride. Methylenetriphenylphosphorane. Organotitanium reagents. Tetrakis(triphenylphosphine)palladium. Tin. Tin(II) fluoride. [Pg.313]

Okude, Y., Hiyama, T., Nozaki, H. Reduction of organic halides by means of chromium(lll) chloride-lithium aluminum hydride reagent in anhydrous media. Tetrahedron Lett. 1977, 3829-3830. [Pg.641]

ALLENIC ALCOHOLS Chromium(III) chloride-Lithium aluminum hydride. [Pg.240]

Chromium(III) chloride-Lithium aluminum hydride. The reagent is prepared by reduction of 2 equiv. of anhydrous CrC j with 1 equiv. of LiAIH, in THF at 0 and is presumably chromium(ll) chloride. The advantage of this new chromium... [Pg.60]

Cholestanone, 497 5a-Cholestanone, 475 A -Cholestene, 497 A -Cholestene-3d,5a-diol, 110 A -Cholestene-3/3,5(3-diol, 110 Cholesteryl benzoate, 110 Chromenes, 235-236 A -Chromens, 407 Chromic acid-Silica gel, 110 Chromic anhydride-3,5-Dimethylpyrazole complex, 110 Chromium carbonyl, 110 Chromium(III) chloride-Lithium aluminum hydride, 110-112 Chromyl chloride, 112 ... [Pg.296]

Related Reagents. Lithium Aluminum Hydride-(2,2 -Bipy-ridyl)(l,5-cyclooctadiene)nickel Lithium Aluminum Hydride-Bis(cyclopentadienyl)nickel Lithium Aluminum Hydride-Boron Trifluoride Etherate Lithium Aluminum Hydride-Cerium(III) Chloride Lithium Aluminum Hydride-2,2 -Dihydroxy-l, E-binaphthyl Lithium Aluminum Hydride-Chromium(III) Chloride Lithium Aluminum Hydride-Cobalt(II) Chloride Lithium Aluminum Hydride-Copper(I) Iodide Lithium Aluminum Hydride-Diphosphoms Tetraiodide Lithium Aluminum Hydride-Nickel(II) Chloride Lithium Aluminum Hydride-Titanium(IV) Chloride Titanium(III) Chloride-Lithium Aluminum Hydride. [Pg.215]

The condensation is usually carried out by adding a solution containing equimolar amounts of the allyl halide and the aldehyde or ketone to a solution of at least two equivalents of chromium-(II) chloride in THF at 0 5°C. Frequently, the less precious component is used in 50-100% excess. Although commercially available anhydrous chromium(II) chloride can be utilized (Method B), its in situ preparation from chromium(III) chloride and lithium aluminum hydride (Method A) is often preferred. The removal of chromium and aluminum hydroxide, which are formed on aqueous workup, can be accomplished by filtration in the presence of a filtration aid. [Pg.435]

Other reagents that have been used to reduce support-bound aromatic nitro compounds include phenylhydrazine at high temperatures (Entry 5, Table 10.12), sodium borohydride in the presence of copper(II) acetylacetonate [100], chromium(II) chloride [196], Mn(0)/TMSCl/CrCl2 [197], lithium aluminum hydride (Entry 3, Table... [Pg.283]

Tetra-p,3-carbonyldodecacarbonylhexa-rhodium, 288 of alkyl halides to alkanes Chromium(II) chloride, 84 Lithium aluminum hydride-Ceri-um(III) chloride, 159... [Pg.371]

On the other hand, reductive cleavage of the dienone lactam 91 with chromium(II) chloride gave the dibenz[with lithium aluminum hydride. Deprotection of 76biosynthetic precursor of the Schelhammera alkaloids. Oxidation of the diphenol 76a by potassium ferricyanide in the two-phase system gave the expected 5,7-fused dienone 77 in 61% yield (50). [Pg.206]

The pinacol (94) was also obtained by reductive dimerization of retinaldehyde (2) with zinc amalgam (Reedy, 1968) or in the presence of chromium(III) salts (Sopher and Utley, 1979). With a mixture of lithium aluminum hydride and titanium chloride in anhydrous tetrahydrofuran, retinaldehyde (2) underwent reductive coupling to give p-carotene (Akiyama et al., 1979 Mukaiyama, 1977 McMurry et al., 1978 Ishida and Mukaiyama, 1977). [Pg.37]

Chromic anhydride-pyridine, 70 Chromium hexacarbonyl, 71 Chromones, 423 Chromous chloride, 73 Chrysanthemic acid, 49, 50, 207-208 Chrysanthemic esters, 183-184 Cinnamic esters, 362 CitroneUol, 5, 308, 309 Claisen rearrangement, 2, 372 Clemmensen reduction, 426 Cocaine, 384 Codeine, 236, 347, 348 Conjugate addition, 86, 102, 119-120, 133, 226-227, 253, 353, 400 Cope rearrangement, 66, 397 Copper, 73-74 Copper(I) acetate, 80 Copper(II) acetate, 39, 117, 126, 186 Copper(I) bromide-Lithium trimethoxy-aluminum hydride, 80 Copper(I) bromide, 79-80 Copper(I) chloride, 50, 80-81 Copper(II) chloride, 126, 79 Copper(l) cyanoacetate, 74 Copper halide nitrosyls, 73 CopperO) iodide, 81-82 Copper(I) methyltrialkylborates, 4,75 CopperGD perchlorate. 79 COpper(I) phenylacetylide, 237 Copper(II) sulfate, 117 CopperO) trifluoiomethanesulfonate, 75-76... [Pg.239]

See other pages where Lithium aluminum hydride-chromium chloride is mentioned: [Pg.366]    [Pg.587]    [Pg.631]    [Pg.2393]    [Pg.101]    [Pg.170]    [Pg.170]    [Pg.170]    [Pg.17]    [Pg.170]    [Pg.959]    [Pg.476]    [Pg.293]    [Pg.382]    [Pg.21]    [Pg.100]    [Pg.102]    [Pg.607]    [Pg.903]    [Pg.926]    [Pg.70]    [Pg.959]    [Pg.1477]    [Pg.6]    [Pg.463]    [Pg.474]    [Pg.710]    [Pg.976]   
See also in sourсe #XX -- [ Pg.84 ]

See also in sourсe #XX -- [ Pg.84 ]

See also in sourсe #XX -- [ Pg.101 ]

See also in sourсe #XX -- [ Pg.101 ]



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Chromium chlorids

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