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- W2066745437 abstract "Reported is the synthesis of acetylenic and propargylic α-CF3-α-aminophosphonates 2 and 3 which are converted into corresponding triazoles 4 and 5 by copper-catalyzed click reactions. Compounds 2 and 3 are obtained in moderate yields from imine 1 by addition of sodium acetylide and Grignard reagent derived from propargyl bromide. The copper(I) species is generated in situ from CuSO4 and sodium ascorbate. The reaction proceeds in moderate to good yields. For aminophosphates 3 the reaction is heated at 80 ˚C resulting in a shorter reaction time (2 h compared to 8-12 h for 2). Selective deprotection of Cbz and pivaloylmethyl groups in good yields as well as the acidolysis of the phosphonate group to the free aminophosphonic acid as a salt was also achieved." @default.
- W2066745437 created "2016-06-24" @default.
- W2066745437 date "2010-04-22" @default.
- W2066745437 modified "2023-10-14" @default.
- W2066745437 title "Copper-Catalyzed Synthesis of Triazolyl-α-CF3-α-Aminophosphonates" @default.
- W2066745437 doi "https://doi.org/10.1055/s-0029-1219722" @default.
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