Diisobutylaluminum chloride

Titanium(III) chloride-Diisobutylaluminum hydride. A black, solid lower-valent titanium reagent (1) is obtained on reduction of TiCl3 3THF with DIBAH in toluene.1... [Pg.303]

Ethoxycarbonylpropyl)-lH-imidazole Trimethylsilyl chloride Diisobutylaluminum hydride p-t-Butylaminocarbonylbromobenzene... [Pg.1546]

Butadiene has been converted into poly-l,4-(cis-butadiene) in greater than 98.3% by Ziegler-Natta catalysis comprising neodymium versatate, diethyl aluminum chloride, diisobutylaluminum hydride, and triisobutyMuminum. The polymer was then converted into a polybutadiene-polyurethane copolymer by reacting with a diisocyanate and diol. This copolymer exhibited low cold flow and high affinity for silica or carbon black, excellent elasticity, and abrasion resistance. [Pg.539]

Chlorodiisobutylaluminium Dibac Diiso-butylaluminum chloride Diisobutylaluminum mono-chloride Diisobutylchloroaluminum EINECS 217-216-8 HSDB 5856. [Pg.73]

Triisobutylalurninum is converted to diisobutylalurninum chloride [1779-25-5] and diisobutylaluminum hydroxide [1191 -15-7] which are used as... [Pg.372]

An allylaluminum species, which was generated by the reaction of allyl Grignard reagent with diisobutylaluminum chloride, was found to react with terminal alkynes in... [Pg.303]

The major obstacle to this approach is that there are few reagents capable of generating higher homologues of titanocene-methylidene. Although the procedure is not straightforward, the titanacycle 21 formed by the addition of diisobutylaluminum hydride to the double bond of (l-propenyl)titanocene chloride 22 serves as a titanocene-propylidene 23 equivalent in carbonyl olefmation (Scheme 14.12) [22]. [Pg.479]

Perlmutter used an oxymercuration/demercuration of a y-hydroxy alkene as the key transformation in an enantioselective synthesis of the C(8 ) epimeric smaller fragment of lb (and many more pamamycin homologs cf. Fig. 1) [36]. Preparation of substrate 164 for the crucial cyclization event commenced with silylation and reduction of hydroxy ester 158 (85-89% ee) [37] to give aldehyde 159, which was converted to alkenal 162 by (Z)-selective olefination with ylide 160 (dr=89 l 1) and another diisobutylaluminum hydride reduction (Scheme 22). An Oppolzer aldol reaction with boron enolate 163 then provided 164 as the major product. Upon successive treatment of 164 with mercury(II) acetate and sodium chloride, organomercurial compound 165 and a second minor diastereomer (dr=6 l) were formed, which could be easily separated. Reductive demercuration, hydrolytic cleavage of the chiral auxiliary, methyl ester formation, and desilylation eventually led to 166, the C(8 ) epimer of the... [Pg.233]

In an earlier investigation by the authors (1) an initiator mixture consisting of neodymium neodecanoate, methylaluminoxane, diisobutylaluminum, and diethylaluminum chloride was used to prepare poly(styrenc-co-butadiene) having greater than a 99% cis-1,4 bond content. [Pg.220]

ALDOL CONDENSATION Cesium fluoride. Dialkylboron trifluoromethane-sulfonates. Dichlorobis(cyclopentadi-enyl)zirconium. Diisobutylaluminum phenoxide. 2,5-Dimethylphenylpropi-onate. DimetIiyl(phenyllhio)aIuminum. Lithium iodide. Triethylborane. Tri-methylsilyl trifluoromethanesulfonate. Triphenyltin chloride. TrisCdiethyI-amino)sulfonium difluorotrimethyl-siliconate. [Pg.465]

Hydrogenation of 4-oxo-4//-pyrimido[2,l-a]isoquinoline-3-nitrile in tetrahydrofuran in the presence of ammonia over Raney nickel under 60 psi for 5 h yielded 3-aminomethyl-4//-pyrimido[2,l-a]isoquinolin-4-one (86EUP166439). Reduction of ethyl 4-oxo-4//-pyrimido[2,l-a]isoquino-line-3-carboxylate with diisobutylaluminum hydride in methylene chloride... [Pg.201]

Oxidation reactions r-Butyl hydroperoxide-Dialkyl tar-trate-Titanium(IV) isopropoxide, 51 m-Chloroperbenzoic acid, 76 Reduction reactions Chlorodiisopinocampheylborane, 72 Diisobutylaluminum hydride-Tin(II) chloride- (S) -1 - [ l-Methyl-2-pyrrolidi-nyljmethylpiperidine, 116 Lithium borohydride, 92 Lithium tri-sec-butylborohydride, 21 B-3-Pinanyl-9-borabicyclo[3.3.1]-nonane, 249... [Pg.359]

Diisobutylaluminum hydride-Tin(II) chloride, 116 Nickel boride, 197 Dehydration... [Pg.364]

Dichloro-2,2-difluoroethylene, 105 (Diethylamino)sulfur trifluoride, 110 Reduction reactions (see also Deoxygenation, Reductive. . . ) of acetals and ketals Dibromoalane, 237 Diisobutylaluminum hydride, 237 Triethylsilane-Tin(IV) chloride, 237 of acetates and other esters to alkanes Nickel boride, 197 Triphenylsilane, 334 of acyl halides to alcohols Sodium cyanoborohydride-Tin(II) chloride, 280... [Pg.371]

Diisobutylaluminum hydride-Boron trifluoride etherate, 116 Diphenylsilane-Palladium(II) chlo-ride-Triphenylphosphine, 126 Diphenylsilane-Tetrakis(triphenyl-phosphine)palladium(0)-Zinc chloride, 126... [Pg.373]

From reduction of aldehydes and ketones Using aluminum-based reagents Diisobutylaluminum hydride-Tin(II) chloride-(S)-l-[l-Methyl-2-pyrrolidinyl] methylpiperidine, 116... [Pg.377]

Diisobutylaluminum hydride-Tin(II) chloride, 116 Nickel boride, 197 By dehydration Ferric chloride-Silica, 134 By dehydrohalogenation Lithium 2,2,6,6-tetramethylpiperi-dide, 167... [Pg.382]

Arenediazonium tetrafluoroborates, 19 Azidotrimethylsilane, 24 N-Chlorosuccinimide, 79 Diphenyldiazomethane, 242 a-Substituted a-amino acids a-Methylbenzylamine, 185 Methyl N-benzyloxy carbonyl-a-chloro-glycinate, 186 Pivaldehyde, 249 Miscellaneous compounds Diisobutylaluminum hydride-Boron trifluoride etherate, 116 Tin(IV) chloride, 300 Amino alcohols... [Pg.384]

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