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- W2022361473 abstract "Abstract The activated triple bond of But-2-yn-1,4 ylen-bistripenylphosphonium 1 adds nucleophiles having mobile hydrogen ZH to give new polyfunctional phosphorus reagents. bisphosphonium salts containing the following entities: enamines with alkyl or arylamines, vinylthioethers with thiophenols. piperazine with ethylenediamine and dioxane with ethylene glycol. The addition of symmetrical or unsymmetrical aromatic dinucleophiles HZ—C6H4-Z'H leads only to monoadducts and shows the following order of preferential reactivity: Ar-SH > Ar-NH2 ≥ Ar-OH. La triple liaison activee du butyne-2 ylene-1,4 bistripenylphosphonium additionne les nucleophiles a hydrogene mobile ZH pour conduire a de nouveaux reactifs phosphores polyfonctionnels. sels de bisphosphoniums qui comportent les motifs suivants: enamines avec les alkyls et arylamines, thiether-vinyliques avec les thiophenols piperazine avec l'ethylhediamine at dioxanne avec l'ethyleneglycol. Dans le cas des composes aromatiques difonctionnels HZ—C6H4—Z'Z'H. syme..." @default.
- W2022361473 created "2016-06-24" @default.
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- W2022361473 date "1986-01-01" @default.
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- W2022361473 title "Reactivite Electrophile D'Un Alkyne-β, β'Bisphosphonium: Addition D'Amines Et De Thiophenols" @default.
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- W2022361473 doi "https://doi.org/10.1080/03086648608084568" @default.
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