Relevant articles and documents
Ionic liquids as novel and recyclable reaction media for N-alkylation of amino-9,10-anthraquinones by trialkyl phosphites
Yavari, Issa Kowsari, Elaheh
Ionic liquids such as 1,3-dialkylimidazolium bromides make excellent catalysts and solvents for N-alkylation of amino-9,10-anthraquinones in the presence of trialkyl phosphites. For triethyl phosphite, [bpim][Br] gave better results. The ionic liquids are successfully regenerated and reused.
Perfluoroalkylquinones. Synthesis Using Bis(perfluoroalkanoyl) Peroxides, Absorption Bands, and Solubility
Matsui, Masaki Kondoh, Shigeru Shibata, Katsuyoshi Muramatsu, Hiroshige
The reactions of 1,4-benzo-, naphtho-, and 9,10-anthraquinones with bis(perfluoroalkanoyl) peroxides gave the corresponding perfluoroalkylated derivatives.Those of 2-methyl- and 2-<4-(chloroanilino)>-1,4-naphthoquinones with bis(oxaperfluoroalkanoyl) peroxides afforded the dichloromethyl and trifluoromethyl derivatives, respectively.Absorption bands of the perfluoroalkylated naphtho- and anthraquinone dyes showed a slight hypsochromic shift.The solubilities of the perfluoroalkylated anthraquinone dyes into hexane were much more higher than those of the non-perfluoroalkylated ones.
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