- Application of a readily available and air stable monophosphine HBF4 salt for the Suzuki coupling reaction of aryl or 1-alkenyl chlorides
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In this Letter, a readily available monophosphine HBF4 salt was applied for the Suzuki coupling reactions of organoboronic acids to afford the cross-coupling products in high to excellent yields. Both aryl or 1-alkenyl boronic acids and chlorides may be used. It is also suitable for sterically hindered cases.
- Lü, Bo,Fu, Chunling,Ma, Shengming
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supporting information; experimental part
p. 1284 - 1286
(2010/04/27)
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- Heck reaction of aryl halides with linear or cyclic alkenes catalysed by a tetraphosphine/palladium catalyst
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cis,cis,cis-1,2,3,4-Tetrakis(diphenylphosphinomethyl)cyclopentane/[PdCl(C 3H5)]2 system catalyses efficiently the Heck reaction of aryl halides with linear alkenes such as pent-1-ene, oct-1-ene or dec-1-ene. Selectivities up to 70% in favour of E-1-arylalk-1-ene isomers can be obtained. In the presence of cyclic alkenes the selectivities of the reactions strongly depends on the ring size. Addition to cyclohexene or cycloheptene led mainly to 1-arylcycloalk-3-ene derivatives. On the other hand, addition to cyclooctene led to 1-arylcycloalk-1-ene adducts.
- Berthiol, Florian,Doucet, Henri,Santelli, Maurice
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p. 1221 - 1225
(2007/10/03)
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- Ni(O) catalyzed reactions of aryl and vinyl halides with alkenes and alkynes
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NI[P(OPh)3]4 and Ni[P(OET)3]4 catalyze the reaction of aryl and vinyl halides with olefins (Heck reaction) and alkynes.
- Iyer, Suresh,Ramesh, Chinnasamy,Ramani
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p. 8533 - 8536
(2007/10/03)
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- Arylation of Olefins by Arylazo Aryl Sulfones under Palladium(0) Catalysis
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Palladium(0)-catalyzed reaction of arylazo aryl sulfones with olefins in benzene at 80 deg C gave aryl-substituted olefins in good yield.Diarylpalladium(II) species was proposed as an intermediate in this reaction.
- Kamigata, Nobumasa,Satoh, Akira,Kondoh, Tetsuya,Kameyama, Masayuki
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p. 3575 - 3580
(2007/10/02)
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- Process for the manufacture of new carboxylic acids
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α-Phenoxyacetic acids, in which the α-position is substituted by an alkyl residue with 5 to 12 carbon atoms and the phenyl residue is substituted by a cycloaliphatic hydrocarbon residue which is unsaturated in the 1-position and is only singly unsaturated
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