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European Journal of Organic Chemistry | 1981

Darstellung von 2-Aryl-(4-R)-arseninen durch Arsacyclohexadienol Arsabenzol-Umlagerung†

Gottfried Märkl; Rainer Liebl; Horst Baier

Durch KOH/[18]Krone-6 phasentransfer-katalysierte Addition von Arylarsanen (Phenylarsan, p-Tolylarsan) an (3-R)-3-Methoxy-1,4-pentadiine 13 werden cis/trans-isomere 1-Aryl-1,4-dihydro-(4-R)-4-methoxyarsenine 14 und 15 erhalten, deren 1H-NMR- und 13C-NMR-Spektren diskutiert werden. - Die 1,4-Dihydroarsenine 14 und 15 lagern sich bei Umsetzung mit BF3-Etherat oder p-Toluolsulfonsaure unter 1,2-Arylverschiebung in die 2-Aryl-(4-R)-arsenine 22 bzw. 24 um. Diese Umlagerung stellt das erste elementorganische Analogon zur Cyclohexadienol Benzol-Umlagerung dar. Die 1H-NMR-, 13C-NMR-, UV- und Massenspektren der dargestellten Arsenine 22 und 24 werden diskutiert. Synthesis of 2-Aryl-(4-R)-arsenines by Cyclohexadienol Arsabenzene Rearrangement KOH/[18]crown-6 phase-transfer catalyzed addition of arylarsines (phenylarsine, p-tolylarsine) to the (3-R)-3-methoxy-1,4-pentadiynes 13 yields the cis/trans isomeric 1-aryl-1,4-dihydro-(4-R)-4-methoxyarsenines, the 1H-NMR- and 13C-NMR spectra of which are discussed. - The addition of BF3-etherate or p-toluenesulfonic acid to the 1,4-dihydroarsenines 14, 15 causes rearrangement under 1,2-aryl migration to the 2-aryl-(4-R)-arsenines 22, 24. This rearrangement represents the first element-organic analogue of the cyclohexadienol benzene rearrangement. The 1H-NMR, 13C-NMR, UV, and mass spectra of the synthesized arsenines 22, 24 are discussed.


European Journal of Organic Chemistry | 1981

4‐Alkyl(Aryl)‐λ3‐phosphorine aus Butoxy‐4‐alkyl(aryl)‐4‐methoxy‐1,4‐dihydrophosphorinen

Gottfried Märkl; Horst Baier; Rainer Liebl


Archive | 1987

Herbicidal derivatives of imidazolidinone and imidazolidine thione

Rainer Liebl; Reinhard Handte; Hilmar Mildenberger; Klaus Bauer; Hermann Bieringer


European Journal of Organic Chemistry | 1981

4-Alkyl(Aryl)-λ5-phosphorine; 1,4-Dihydrophosphorin/λ5-Phosphorin-Umlagerung

Gottfried Märkl; Horst Baier; Rainer Liebl; David S. Stephenson


Archive | 1987

Bicyclic imides, process for their preparation and their use in crop protection.

Rainer Liebl; Michael Frey; Hilmar Dr. Mildenberger; Klaus Bauer; Hermann Bieringer


Archive | 1988

Alkyl-N-aryl-tetrahydrophthalimides, process for their manufacture and their use in protecting plants

Rainer Liebl; Klaus Bauer; Hermann Bieringer


Archive | 1986

N-substituted 3,4,5,6-tetrahydrophthalimide, process for their preparation and their use as herbicides.

Rainer Liebl; Reinhard Handte; Hilmar Dr. Mildenberger; Klaus Bauer; Hermann Bieringer


Archive | 1984

Imidazolinones, process for their preparation and their use in plant ptotection

Roland Schmierer; Reinhard Handte; Rainer Liebl; Hilmar Dr. Mildenberger; Klaus Bauer; Hermann Bieringer; Helmut Burstell


European Journal of Organic Chemistry | 1980

4-Alkyl- und 4-Aryl-Δ3-arsenine sowie 4-Alkyl- und 4-Aryl-2-benzyl-Δ3-arsenine durch 4-Methoxy-1,4-dihydro-arsenin-Arsenin-Umlagerung

Gottfried Märkl; Rainer Liebl


Archive | 1985

Phenoxybenzoic acid derivatives, their preparation, and their use in crop protection

Rainer Liebl; Reinhard Handte; Hilmar Dr. Mildenberger; Klaus Bauer; Hermann Bieringer

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