[EN] MOLECULES HAVING CERTAIN PESTICIDAL UTILITIES, AND INTERMEDIATES, COMPOSITIONS, AND PROCESSES RELATED THERETO [FR] MOLÉCULES PRÉSENTANT CERTAINES UTILITÉS PESTICIDES, ET INTERMÉDIAIRES, COMPOSITIONS ET PROCÉDÉS ASSOCIÉS
[EN] MOLECULES HAVING CERTAIN PESTICIDAL UTILITIES, AND INTERMEDIATES, COMPOSITIONS, AND PROCESSES RELATED THERETO [FR] MOLÉCULES PRÉSENTANT CERTAINES UTILITÉS PESTICIDES, ET INTERMÉDIAIRES, COMPOSITIONS ET PROCÉDÉS ASSOCIÉS
nickel-catalyzed C–Htrifluoromethylation for the synthesis of trifluoromethylated freeanilines using Togni’s reagent has been developed. This approach exhibits a good functional group tolerance, good regioselectivity, and chemoselectivity under mild conditions. The newly developed economical one-step method is a better alternative to synthesize trifluoromethylated freeanilines.
Perfluoroalkylation of anilines in the presence of zinc and sulphur dioxide
作者:Claude Wakselman、Marc Tordeux
DOI:10.1039/c39870001701
日期:——
Arylamines are transformed into their ortho- and para-trifluoromethyl derivatives by the action of trifluoromethyl bromide under slight pressure in the presence of 0,15 equiv. of zinc and sulphurdioxide in dimethylformamide.
Approaches toward Atropisomerically Stable and Conformationally Pure Diarylamines
作者:Sagar D. Vaidya、Beeta S. Heydari、Sean T. Toenjes、Jeffrey L. Gustafson
DOI:10.1021/acs.joc.2c00451
日期:2022.5.20
examples of atropisomerically stable diarylamines in the literature, as the contiguous axes can allow for low energy racemization pathways via concerted bondrotations. Herein, we describe highly atropisomerically stable diarylamines that possess barriers to racemization of 30–36 kcal/mol, corresponding to half-lives to racemization on the decade to century time scale at room temperature. Investigation