- Alkylations of Trichloromethylketones Effected by Trichloroacetate and a Complex Consecutive Reaction
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A phase transfer reaction between the title ketones, sodium trichloroacetate, and an alkyl halide leads to 2a, b, 4, or 5.Whereas these compounds are fragmented by NaOH, sodium methoxide/methylmalonate/methanol give compound 8 from 5 in a complex series of consecutive rearrangements. - Key words: Trichloromethylketones, Phase Transfer Reaction
- Dehmlow, Eckehard V.,Raths, Hans-Christian
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p. 918 - 920
(2007/10/02)
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- Methyl-halogenated Allyl Methyl Sulfoxides and Sulfones and the Synthesis of Halogenated Sulfines
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Allyl methyl sulfoxides R1R2R3C-S(O)-CH2CH=CH2 1a-7a (R1, R2, R3 = H, F, Cl, CF3) as well as the corresponding sulfones 1b-7b were synthesized.The sulfoxides substituted at the methyl group are in equilibrium with the allyl sulfenates R1R2R3-S-OCH2CH=CH2 depending on temperature and kind of substitution.By pyrolysis of the sulfoxides 2a, 3a, 4a, and 7a the sulfines Cl2C=SO and (CF3)2C=SO could be prepared, and evidence for the existence of the sulfines ClFC=SO and F2C=SO could be obtained.The new pentenes 12 and 14 are described.
- Holoch, Jan,Sundermeyer, Wolfgang
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p. 269 - 278
(2007/10/02)
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