2005
DOI: 10.1021/jo051298k
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Lewis Acid Mediated Reactions of Aldehydes with Styrene Derivatives:  Synthesis of 1,3-Dihalo-1,3-diarylpropanes and 3-Chloro-1,3-diarylpropanols

Abstract: [reaction: see text] The reactions of aryl aldehydes with styrene derivatives, mediated by various boron Lewis acids, were investigated. 1,3-Dihalo-1,3-diarylpropanes were obtained in high yields with boron trihalides, while 3-chloro-1,3-diarylpropanols were obtained in good to excellent yields with phenylboron dichloride. Reactions involving nonenolizable aliphatic aldehydes, trans-cinnamaldehyde, and beta-substituted styrenes were also investigated for the first time.

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Cited by 9 publications
(4 citation statements)
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“…Our research group has been investigating boron halide chemistry for many years [32]; during this time we have discovered that, in the absence of transition-metal catalysts, certain boron halide derivatives are powerful reagents for use in difunctionalization of aryl aldehydes. For example, we have reported the dihalogenation [33], chloroalkylation [34,35], dialkenylation [36,37], and haloallylation [38,39] of aryl aldehydes under very mild reaction conditions.…”
Section: Resultsmentioning
confidence: 99%
“…Our research group has been investigating boron halide chemistry for many years [32]; during this time we have discovered that, in the absence of transition-metal catalysts, certain boron halide derivatives are powerful reagents for use in difunctionalization of aryl aldehydes. For example, we have reported the dihalogenation [33], chloroalkylation [34,35], dialkenylation [36,37], and haloallylation [38,39] of aryl aldehydes under very mild reaction conditions.…”
Section: Resultsmentioning
confidence: 99%
“…Todavia, outros métodos são relatados na literatura e envolvem as reações de cloral e/ou bromal com alcenos, 28 alcinos, 29 enolatos, 30,31 iminas 32 e por redução de tri-halometilcetonas. 13,15,24,[33][34][35] Esse último método chama a atenção pelo fato de diferentes catalisadores serem utilizados com o objetivo de realizar reações estereosseletivas para obtenção de THMCs enantiomericamente enriquecidos, conforme exemplificado no Esquema 4.…”
Section: Tri-halometil Carbinois -Thmcsunclassified
“…BI 3 acts as a Lewis acid to mediate reaction between styrenes and aldehydes to give 1,3diiodo-1,3-diarylpropanes in moderate yields (eq 12) 18. …”
mentioning
confidence: 99%