- Diazo Esters Addition to Trifluoropyruvamides: New Access to Highly Functionalized Trifluoromethyl Epoxides and Diazo Compounds
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Trifluoropyruvamides in their hydrated form readily react with diazo esters affording new trifluoromethyl epoxides. Activating the pyruvamide with trifluoroacetic anhydride leads to a complete change in selectivity with the formation of a new diazo compound.
- El Kaim, Laurent,Ollivier, Cyril
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- An efficient and odorless synthesis of thioethers using 2-[Bis(alkylthio)methylene]-3-oxo-N-o-tolylbutanamides as thiol equivalents
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Using 2-[bis(alkylthio)methylene]-3-oxo-N-o-tolylbutanamides 1 as odorless thiol equivalents, an efficient and odorless synthesis of thioethers has been developed. Promoted by NaOH in EtOH, the cleavage of 1 commences to generate thiolate anions, and the generated thiolate anions then react with halides to give various thioethers in good yield. It is noteworthy that only a very faint odor of thiols can be perceived during both the reaction and the workup. Using 2-[bis(alkylthio)methylene]-3-oxo-N-o-tolylbutanamides as odorless thiol equivalents, an efficient and odorless synthesis of thioethers has been developed. Promoted by NaOH in EtOH, the cleavage of 2-[bis(alkylthio)methylene] -3-oxo-N-o-tolylbutanamides commences to generate thiolate anions, and the generated thiolate anions then react with halides to give various thioethers in good yield. Copyright
- Yu, Haifeng
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scheme or table
p. 367 - 371
(2012/04/23)
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- Ethyl Esters of Malonanilic Acids. Synthesis and Pyrolysis
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The pyrolysis under 170-220 deg C or boiling in DMF of malonanilic acids ethyl esters (2) is accompanied by formation of malonic acids symmetric dianilides (7) with high yields.A possible mechanism for this transformation has been suggested.
- Ukrainets, Igor V.,Bezugly, Peter A.,Treskach, Vladimir I.,Taran, Svetlana G.,Gorokhova, Olga V.
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p. 10331 - 10338
(2007/10/02)
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- 1,2-Dithiol-3-ylideneammonium derivatives, compositions and use
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New compounds of the formula: STR1 wherein X? is an anion, R is (C1-7) alkyl [unsubstituted or substituted by hydroxy, carboxy, alkoxycarbonyl, cyano, dialkylamino, alkylcarbonyl, or benzoyl which is unsubstituted or substituted by o
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