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Reaction with Organometallic Compounds

Diphenyl ditellurium reacted in tetrahydrofuran with diisobutyl aluminum hydride at 20° to give phenyltelluro diisobutyl aluminum (p. 185). [Pg.289]

Irgolic Organic Tellurium Compounds with one Te,C Bond [Pg.290]

Diorgano ditellurium compounds and diorgano mercury reagents react also to give diorgano tellurium products. In these reactions both halves of a ditellurium substrate are converted to the desired product. [Pg.290]

Diethyl ditellurium and bis[triethylgermyl] mercury yielded ethyl triethylgermyl tellurium. Triorgano tin hydrides cleave the Te — Te bond in diaryl and dialkyl di tellurium compounds forming the organo triorganostannyl tellurium as one of the products (p. 191). [Pg.290]

Tetraalkyldiphosphanes, -diarsanes, and -dibismuthanes react with diorgano ditellurium compounds by exchange of R M groups. Not all of these products can be isolated  [Pg.290]

Isomerization of o, 3-epoxy-ketones in the presence of palladium complexes leads to 1,3-diones thus heating (229) in toluene that contains Pd(PPh3)4 and (Ph2PCH2)2, at 140°C, for 90 hours gives (230) (94.3%).  [Pg.38]

Perilla alcohol (232) (98%) has been prepared by treating 3-pinene epoxide (231) with HgS04 that is suspended in a water-THF mixture, extracting into ether, and treating the ethereal extract with dilute H2S04.  [Pg.38]

Tanaka, M. Koyanagi, and T. Kobayashi, Tetrahedron Lett., 1981, 22, 3875. Teijin Ltd., Jpn. Kokai Tokkyo Koho 81 1 5 216. [Pg.38]

X = 0) may be prepared by the reaction of ethylene oxide with CO2 under pressure, at 140 °C, in the presence of alkali-metal halides.The reaction is catalysed by free anion, which is generated by the use of the complex between 18-crown-6 and Using complexes of this type, the compounds (233 X= 0 = Me, Ph, or CICH2 R = H or Me) have also been pre- [Pg.39]

3-dioxolans (234 R = CH2CI, Me, or Et) have been prepared under neutral conditions by the reactions of the corresponding epoxides with benz-aldehyde. The reactions are catalysed by halide ion and provide a mixture of cis- and rra s-2,4-disubstituted compounds. Using Lewis acid catalysts, the ds-isomer was preferentially formed whereas catalysis by lithium halides favoured the rrans-isomer. [Pg.39]

Matsuda, A. Ninagawa, R. Nomura, and T. Tsuchida, Chem. Lett., 1979, 573. [Pg.25]

A novel ring-opening reaction of oxirans, catalysed by copper and pyridine, generates c/s-diols under mild conditions. The bicyclic epoxides (186 = 1 or 2) yield (187 n = 1) (95%) and (187 = 2) (85%) in neutral, phosphate-buffered, solution. This type of reaction may have some relevance to the metabolic pathways for fused aromatic compounds, which are thought to proceed via arene oxides and diol epoxides. The catalyst system may be used to add OH , Cr, or MeO regiospecifically to the benzylic centre of indene oxide, with proton addition to the oxygen atom of oxiran. [Pg.26]

Miscellaneous Reactions of Oxirans.—The first successful enzymatic cyclization of a non-natural squalene has been disclosed. (18Z)-Oxidosqualene (188), which does not possess the naturally occurring a -trans stereochemistry, was caused to cyclize, in the presence of 2,3-epoxysqualene sterol cyclase, to (205)-epinorlanosterol (189). The polyene oxide (190) underwent an uncommon tricyclization in CH2CI2 containing Bp3-OEt2 to form the cw-fused A/B-ring 18-nor-steroid (191) (25%) this compound was found to be identical with a material derived by treatment of a naturally occurring steroid with BF3. [Pg.26]

Two high-yield three-step syntheses of (195) from anthraquinone have been developed via the bis-epoxide (194) (67% and 89% overall). Compound (195) was obtained from (194) either by conversion into lO-hydroxymethyl-9-anthraldehyde with LiBr, followed by oxidation, or by conversion into 9,10-dihydroanthracene-9,10-dicarboxaldehyde with BF3, followed by dehydrogenation. [Pg.27]

Oxirans may be converted into a-chloro- or a-bromo-ketones on reaction with Mc2SX X (X = Cl or Br). Sequential treatment of (183 = 1, 2, or 3) in CH2CI2 with MeaSBr Br and NEt3 gave (196 n = 1,2, or 3) in 80,74, and 68% yields, respectively. [Pg.27]


Reactions with Organometallic Compounds of Main Group... [Pg.284]

One of the most studied imine precursors in the reaction with organometallic compounds is (3R,4R)-4-acetoxy-3-[(R)-l -((t-butyldimethylsilyl)oxy)ethyl]-2-azetidinone (31) (equation 23)97. [Pg.825]

The effects of metal-containing POSS on the combustion behavior of polypropylene have been investigated.46 Metal-POSS was prepared from incompletely condensed structures by reaction with organometallic compounds. The dimeric and oligomeric of Al and Zn-isobutyl silsesquiox-ane (POSS) have been evaluated as potential flame retardants for polypropylene, and the results were compared with PP/octaisobutyl POSS. The cone calorimeter data (Table 8.2) revealed that... [Pg.194]

An extension of the Erlenmeyer synthesis is the condensation of acylamino acids with triethyl orthoformate which leads to the ethoxymethylene derivatives (297). These can be hydrolyzed to the corresponding enols, which in turn can be converted into chloromethylene compounds, e.g. (298). The lability of the chlorine atom in this compound (see arrows) can be put to good account reaction with organometallic compounds or with benzene and its derivatives under Friedel-Crafts conditions yields unsaturated lactones (298 aryl or heteroaryl in place of Cl). The method is especially valuable in cases where the aldehyde is not readily available. [Pg.226]

Aryl tellurium trichlorides are easily converted to symmetrical or unsymmetrical diaryl tellurium dihalides via reactions with organometallic compounds (see p. 549). Trimethyl(aryl)silanes transfer only the aryl group to tellurium1. [Pg.333]

There is an extensive chemistry of substituted sulfur fluorides of the types RSF3 and RSF5 examples of the former were mentioned previously. The SF5 derivatives bear considerable resemblance to CF3 derivatives, with the principal difference that in reactions with organometallic compounds the SF5 group is fairly readily reduced, whereas the CF3 group is not. [Pg.517]


See other pages where Reaction with Organometallic Compounds is mentioned: [Pg.606]    [Pg.853]    [Pg.294]    [Pg.255]    [Pg.699]    [Pg.720]    [Pg.131]    [Pg.203]    [Pg.583]    [Pg.106]    [Pg.305]    [Pg.369]    [Pg.823]    [Pg.823]    [Pg.606]    [Pg.853]    [Pg.882]    [Pg.1133]    [Pg.21]    [Pg.107]    [Pg.289]    [Pg.333]    [Pg.1133]    [Pg.336]   


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1-Naphthy limine reactions with organometallic compounds

1.3- Oxazines, 4,4,6-trimethyl-5,6-dihydromethiodide salt reactions with organometallic compounds

2- Hexenal reaction with organometallic compounds

2-Oxazolines, 4,4-dimethylmethiodide salt reactions with organometallic compounds

A -Piperidine reactions with organometallic compounds

A-Alkoxyaldimines reaction with allyl organometallic compounds

Acetals reactions with organometallic compounds

Acetophenone reaction with allylic organometallic compounds

Acids reaction with organometallic compounds

Aldehydes, a-alkoxy reactions with organometallic compounds

Aldehydes, p-alkoxy reaction with allyl organometallic compounds

Aldimines reactions with organometallic compounds

Aldoxime ethers reactions with organometallic compounds

Allenic organometallic compounds reactions with aldimines

Allenic organometallic compounds reactions with imines

Allyl organometallic compounds reactions with 8-phenylmenthylA-methoxyiminoacetate

Allyl organometallic compounds reactions with a-phenylaldimine

Allyl organometallic compounds reactions with aldimines

Allyl organometallic compounds reactions with chiral C=N electrophiles

Allyl organometallic compounds reactions with gem-amino ethers

Allyl organometallic compounds reactions with glyoxylate aldimines

Allyl organometallic compounds reactions with imines

Butyraldehyde, 3-methoxy a-alkoxyaldimines derived from reaction with allyl organometallic compounds

By Reaction with Other Organometallic Compounds

Carbonyl compounds acid derivatives reactions with organometallic reagents

Carbonyl compounds reactions with crotyl organometallics

Carbonyl compounds reactions with organometallic reagents

Carbonyl compounds reactions with organometallics

Crotyl organometallic compounds reactions with achiral ketones

Crotyl organometallic compounds reactions with aldehydes

Crotyl organometallic compounds reactions with aldimines

Crotyl organometallic compounds reactions with gem-amino ethers

Crotyl organometallic compounds reactions with imines

Crown ethers reactions with organometallic compounds

Cumulative Subject reactions with organometallic compounds

Diborane reaction with organometallic compounds

Electrophilic cyclopropanes reaction with organometallic compound

Ethylamine, cyclohexylsynthesis reaction with allyl organometallic compounds

Ethylamine, phenylaldimines derived from reaction with allyl organometallic compounds

Fluorine 18 atom reactions with organometallic compounds

Formaldoxime ethers reactions with organometallic compounds

Gem-Amino ethers, N- reactions with allyl organometallic compounds

Glyoxylates reaction with allyl organometallic compounds

Heptan-2-one reaction with allylic organometallic compounds

Hydrazones reactions with organometallic compounds

Hydroxylamine, V- reaction with allyl organometallic compounds

Hydroxylamines reactions with organometallic compounds

Imidazoles, l-benzyl-2-alkyl-4,5-dihydromethiodide salt reactions with organometallic compounds

Imines, N-trimethylsilylin situ synthesis reactions with organometallic compounds

Iminium salts reactions with organometallic compounds

Ketones reactions with organometallic compounds

Lewis acids reactions with organometallic compounds

Nitroarenes reaction with organometallic compound

Nitrones reactions with organometallic compounds

Olefinic esters reaction with organometallic compounds

Opening reactions with organometallic compounds

Organometallic compounds acetylene, reactions with

Organometallic compounds allene, reactions with

Organometallic compounds carbene, reactions with

Organometallic compounds carbenes, reactions with

Organometallic compounds carbyne, reactions with

Organometallic compounds dithioacetals, reactions with

Organometallic compounds reaction

Organometallic compounds reaction with 1 -alkynyl halides

Organometallic compounds reaction with alkyl halides

Organometallic compounds reactions with aldehydes

Organometallic compounds reactions with aldimines, regiochemistry

Organometallic compounds reactions with amides

Organometallic compounds reactions with cyclic ketones

Organometallic compounds reactions with electrophiles

Organometallic compounds reactions with epoxides

Organometallic compounds reactions with nitriles

Organometallic compounds reactions with selenides

Organometallic compounds thiophene, reactions with

Organometallic compounds with

Organometallic compounds, reactions with alkenes

Organometallic compounds, reactions with carbonyls

Organometallic compounds, reactions with imines

Organometallic compounds, reactions with triflates

Oximes reactions with allyl organometallic compounds

Oximes reactions with organometallic compounds

Oxirane reactions with organometallic compounds

Oxygen reaction with organometallic compounds

Peroxides reaction with organometallic compounds

Propargyl organometallic compounds reactions with gem-amino ethers

Propargyl organometallic compounds reactions with imines

Propionaldehyde, 2- methoxyaldimine derivatives reaction with allyl organometallic compounds

Reaction of Organometallic Reagents with Other Compounds

Reaction with organometallics

Reaction with other Organometallic Compounds

Reactions of organometallic compounds with metal halides

Reactions with organometallic compounds Lewis acid promotion

Reactions with organometallic compounds alcohol synthesis

Reactions with organometallic compounds chemoselectivity

Reactions with organometallic compounds stereoselectivity

Selenones, vinyl reactions with organometallic compounds

Selenoxides, vinyl reactions with organometallic compounds

Stannanes reactions with organometallic compounds

Subject reactions with organometallic compounds

Sulfamides, diaryl reactions with organometallic compounds

Sulfonimines reactions with organometallic compounds

Through Reactions with Organometallic Compounds

Water reactions with organometallic compound

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