2000
DOI: 10.1016/s0040-4039(00)01038-8
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Practical methylation of aryl halides by Suzuki–Miyaura coupling

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Cited by 100 publications
(41 citation statements)
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“…Gray and co-workers have used a simple methylboron derivative, trimethylboroxine 240, for the SM cross-coupling of aryl halides (X¼Cl, Br, I) under Pd-catalysed conditions (Scheme 111). 257 In connection with the synthesis of 3-aminopyridine-2-carboxaldehyde thiosemicarbazone, the SM coupling reaction has been utilised to introduce a methyl group into the pyridine nucleus using methylboronic acid and a Pd(0) catalyst (Scheme 112). 258 Fu and co-workers reported a simple method for the synthesis of long-chain alkanes involving the alkyl -alkyl SM crosscoupling reaction of alkyl 9-BBN derivatives with alkyl halides under room temperature and Pd(OAc) 2 catalysis conditions.…”
Section: Coupling Of Sp 3 Hybridised C -B Compoundsmentioning
confidence: 99%
“…Gray and co-workers have used a simple methylboron derivative, trimethylboroxine 240, for the SM cross-coupling of aryl halides (X¼Cl, Br, I) under Pd-catalysed conditions (Scheme 111). 257 In connection with the synthesis of 3-aminopyridine-2-carboxaldehyde thiosemicarbazone, the SM coupling reaction has been utilised to introduce a methyl group into the pyridine nucleus using methylboronic acid and a Pd(0) catalyst (Scheme 112). 258 Fu and co-workers reported a simple method for the synthesis of long-chain alkanes involving the alkyl -alkyl SM crosscoupling reaction of alkyl 9-BBN derivatives with alkyl halides under room temperature and Pd(OAc) 2 catalysis conditions.…”
Section: Coupling Of Sp 3 Hybridised C -B Compoundsmentioning
confidence: 99%
“…Nach der Umwandlung des Intermediats 128 in die pentacyclische Verbindung 129 mithilfe einer Kaskadensequenz transannularer Diels-Alder-Reaktionen, [124,125] die zuerst in einem Biosynthesevorschlag von Sorensen und Mitarbeitern erwähnt wurde, [126] mussten Evans und Starr das verbliebene Bromatom im Intermediat 129 durch eine Methylgruppe ersetzen; auch diese Aufgabe wurde mit einer Suzuki-Reaktion gelöst. Einer früheren Arbeit von Gray und Mitarbeitern folgend, [127] führte die gewünschte Transformation durch Umsetzung des Bromids 129 mit Trimethylboroxin (130), [PdCl 2 (dppf)] (10 Mol-%) und Cs 2 CO 3 in wasserhaltigem DMF bei 100 8C zu Verbindung 131 in 71 % Ausbeute. Bei diesem Schritt wurden nicht nur die vinyloge Esterfunktion und die drei Schema 24.…”
Section: Suzuki-reaktionenunclassified
“…The methylation of bromoand chloroarenes has been performed with trimethylboroxine with Pd(PPh 3 ) 4 (10 mol %) in refluxing aqueous dioxane for 1 d [34] and with palladacyle 1 (10 mol %) in refluxing water.…”
Section: Suzuki-miyaura Coupling Of Aryl Bromides and Chlorides With mentioning
confidence: 99%
“…The compounds 4,5-diphenyl-2-methyl-3(2H)pyridazinone, [34] N,N-dimethyl(4-phenyl)aniline, [36] 2,6-dimethylbiphenyl, [37] have been previously reported.…”
Section: Typical Experimental Procedures For Suzuki-miyaura Coupling Omentioning
confidence: 99%