- Reactions of α-monochloro- and α,α-dichloro-β-oxoaldehyde acetals with bases
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α,α-Dichloro-β-oxoaldehyde diethyl acetals decompose under the action of bases (NaOH, MeONa) with cleavage of the carbon-carbon bond and formation of carboxylic acids or their esters and the dichloroacetaldehyde diethyl acetal carbanion. The latter reacts in situ with benzaldehyde to form stable α-chloro-α,β-epoxyacetal. α-Chloro-α-formyl-γ-butyrolactone diethyl acetal is transformed into α-chloro-α-diethoxymethyl-γ-hydroxybutyric acid under the action of an alkali.
- Guseinov
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p. 663 - 665
(2007/10/03)
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- Products and reaction pats in the liquid phase oxidation of trans-1,2-dichloroethene with oxygen
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Ultraviolet initiated liquid phase oxidation of neat trans-1,2-dichloroethene (1a) with oxigen at 30 deg C afforded ca. 45percent of the combined Cl-products CO, CO2, and phosgene as well as nine oxygenated and nine non-oxygenated chlorinated organic products.Major oxigenated products were cis- and trans-2,3-dichlorooxirane (6a, b) and 1,2,2-trichloroethyl formate (13); minor products were e.g., meso and rac bis(1,2,2-trichloroethyl)ether (11c, d) and dichloromethyl 1,2,2,-trichloroethyl ether (12).The mode of formation of all products is rationalized by a unified reaction scheme.
- Griesbaum, Karl,Hayes, Michael P.,Werli, Vera
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p. 1366 - 1370
(2007/10/02)
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