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Borane reactions

Both alkynes and alkenes can be obtained from adducts of terminal alkynes and boranes. Reaction with iodine induces migration and results in the formation of the alkylated alkyne.32... [Pg.796]

Preparation of phenyl (P-carbomethoxyethyl) phosphine-borane — Reaction of a primary phosphine-borane with an unsaturated ester... [Pg.9]

Several authors7,34,36 42,44 studied the boranation reaction of silica gel as a function of reaction time. Most of the times the reaction was screened using the amount of H2-gas liberated, under the assumption of a 1 1 relationship of H2-evolved to hydroxyls reacted. Both B2H6-chemisorption and H2-evolution curves exhibit the same trend, differing only in absolute numbers.36... [Pg.339]

Retention of configuration is found for tris-(exo-norbornyl)borane reactions . [Pg.347]

Aryl silicon compounds can be prepared by metal-catalysed reaction of halides with silanes, as in the rhodium-catalysed reaction below. The mechanistic details of this reaction (probably) differ from the palladium-catalysed borane reaction. (NOTE triethoxy silane is extremely toxic )... [Pg.52]

High temperatures lead to elimination of hydrocarbons from the thio-derivatives, and formation of borthiins, together with some loss of HjS, giving (R2B)2S the latter, however, tend to lose further H2S, giving borthiins and tri-organyl-boranes [reactions (23)—(25)]. ... [Pg.100]

The regioselectivity comes from the first step. The boron s empty p orbital bonds to the more nucleophilic end of the alkene and hydride is transferred to give a borane. Reaction with alkaline H2O2 leads to migration of an alkyl group from boron to oxygen and eventually to the alcohol. [Pg.570]

There is another way to present this multistep reaction. The reactions are stacked on an arrow, and a number is provided to indicate each separate reaction. For methylcyclopentene, the first reaction with borane (reaction 1) is followed by reaction with NaOH and H2O2 (reaction 2). When presented this way, the alkene starting material reacts with borane to give 69, which is not shown, and in a second reaction 69 is converted to 70. Only the starting material and the final product are shown, however, so the focus is on the isolated product rather than the mechanism. This method of stacking reactions is used throughout this book. [Pg.447]

Ketone 9 Borane Reaction time (h) Boron enolate Yield (%) Z/E Hydroboration and protonolysis product yield (%) ... [Pg.206]


See other pages where Borane reactions is mentioned: [Pg.1337]    [Pg.323]    [Pg.324]    [Pg.329]    [Pg.339]    [Pg.347]    [Pg.347]    [Pg.347]    [Pg.351]    [Pg.516]    [Pg.7]    [Pg.223]    [Pg.294]   
See also in sourсe #XX -- [ Pg.618 , Pg.738 ]

See also in sourсe #XX -- [ Pg.618 , Pg.738 ]




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1,5-Cyclooctadiene, reaction with boranes

1,5-cyclooctadiene reaction with borane

2-methyl-2-butene. reaction with borane

2.3- dimethyl-2-butene, reaction with borane

Acetylene, reaction with borane

Acids reaction with boranes

Acrolein, reaction with borane

Acrolein, reaction with boranes

Aldehydes, conjugated reaction with borane

Aldehydes, conjugated reaction with boranes

Aldehydes, reaction with borane enolates

Alkene reaction with borane

Alkenes reaction with borane, isomerization

Alkenes reaction with boranes

Alkenyl Borane Coupling Reactions

Alkyl Borane Coupling Reactions

Alkynes reaction with boranes

Allyl borane, reaction with aldehyde

Alpine borane reaction with aldehydes

Anhydride, trifluoroacetic reaction with boranes

Aryl Borane Coupling Reactions

Azides reaction with boranes

Borane Diels-Alder reactions

Borane carbonyls reactions with

Borane catechol, reaction with

Borane cluster compounds reactions

Borane complexes reaction with

Borane complexes reaction with alkynes

Borane complexes reactions

Borane coupling reactions

Borane exchange reaction

Borane reaction with 3-hexyne

Borane reaction with alkynes

Borane reaction with boron trichloride

Borane reaction with halo carbonyls

Borane reactions with aldehydes

Borane reactions with benzaldehyde

Borane trialkyl, preparation, 70 reactions

Borane, alkenyloxyalkylalkoxyaldol reactions

Borane, alkenyloxydialkoxyaldol reactions

Borane, alkenyloxydialkylaldol reactions

Borane, alkenyloxydialkylaldol reactions chiral

Borane, alkenyloxydialkylaldol reactions facial selectivity

Borane, alkenyloxydialkylaldol reactions homochiral

Borane, alkenyloxydialkylaldol reactions synthesis

Borane, alkenyloxydirected aldol reactions

Borane, alkenyloxydirected aldol reactions Hooz’ reaction

Borane, alkenyloxydirected aldol reactions homochiral

Borane, allyldimesitylanion reactions

Borane, crotyldiisopinocampheylboratropic shift reactions with aldehydes

Borane, derivatives addition reactions with aldehydes

Borane, dialkylcrotylisomerization reactions with carbonyl compounds

Borane, electrophilicity reaction with alkenes

Borane, electrophilicity reaction with alkynes

Borane, electrophilicity reaction with carboxylic acids

Borane, trichloroaldol reactions

Borane, trichloroaldol reactions alkenyloxydichloroboranes from

Borane, trichloroaldol reactions syn selectivity

Borane, trimethoxyaldol reactions

Borane, trimethoxyaldol reactions catalysis

Borane-Involving Reactions

Borane-tetrahydrofuran, reaction with

Boranes alkynyl, reactions with aldehydes and ketones

Boranes chloride, reaction with alkynes

Boranes condensation reactions

Boranes coupling reactions

Boranes exchange reactions

Boranes fragmentation reaction

Boranes palladium-catalyzed reactions

Boranes protonolysis reactions

Boranes radical reactions

Boranes radical reactions with

Boranes reaction with

Boranes reaction with alkenes, regioselectivity

Boranes reaction with aminals

Boranes reaction with basic hydrogen peroxide

Boranes reaction with carbon

Boranes reaction with carbon dioxide

Boranes reaction with carboxylic acids

Boranes reaction with chloramine

Boranes reaction with diazo compounds

Boranes reaction with epoxides

Boranes reaction with halo carbonyl compounds

Boranes reaction with halogen

Boranes reaction with hydroperoxide anion

Boranes reactions

Boranes reactions

Boranes reactions with aldehydes

Boranes reactions with aldehydes and ketones

Boranes stereoselective reactions

Boranes vinyl, reaction with carboxylic acids

Boranes, alkenyldialkylbrominolysis reaction with iodine

Boranes, alkyl reaction with aldehydes

Boranes, dialkoxychiral catalysts Diels-Alder reactions

Boranes, reaction + unsaturates

Boranes, reaction with bromo esters

Boranes, reaction with chromic acid

Boranes, reaction with disulfides

Boranes, reaction with halo-derivatives

Boranes, reaction with heterocycles

Boranes, reaction with hydride

Boranes, reaction with ketenes

Boranes, reaction with oxygen

Boranes. alkyl-aryl, reactions

Boron compounds reactions, borane reagents

Bromo ketones, reaction with boranes

Carbon monoxide reaction with boranes

Carbonylation reactions boranes

Carboxylic acid reaction with borane

Chiral borane-involving reactions

Cis/trans-Selective reactions with boranes

Conjugated compounds, reaction with boranes

Conjugated dienes, reaction with borane

Cyclopropane, keto vinylfree radical 1,6-addition reactions alkyl boranes

Diazo reaction with boranes

Diazoketones reaction with boranes

Diels-Alder reaction chiral acyloxy borane

Dienes reaction with boranes

Diols reaction with boranes

Halo esters reaction with boranes

Hydrogenation, hydrogen transfer and hydrosilylation reactions assisted by boranes

Hydroperoxide anions reaction with borane

Ketones, conjugated reaction with borane

Ketones, conjugated reaction with boranes

Ketones, reaction with Alpine borane

Ketones, reaction with boranes

Lithium complexes reactions, borane reagents

Nitriles, reaction with borane

Oxirane reactions with borane

Peroxides hydrogen peroxide reaction with boranes

Preparation and Reactions of Functionalized Alkenyl Boranes

Pyridines reactions with boranes

Reaction with borane

Reactions of the Boranes and Their Derivatives

Reduction Reaction with Borane

Reduction reactions with boranes

Regioselectivity alkene reaction with borane

Sodium reaction with boranes

Sulfides reaction with boranes

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