Synthesis and Post-Polymerization Functionalization of Halogen-Substituted Polyphosphinoboranes to Access Alkyne-Functionalized Derivatives.,Macromolecular Rapid Communications

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Synthesis and Post-Polymerization Functionalization of Halogen-Substituted Polyphosphinoboranes to Access Alkyne-Functionalized Derivatives.
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2019-12-27 , DOI: 10.1002/marc.201900468
Marius I Arz ₁ , Alastair W Knights ₁ , Ian Manners _{1,

2}

Affiliation

Catalytic dehydropolymerization of halogen-functionalized phosphine-boranes (4-X-C6 H4 )PH2 ⋅BH3 (1a: X = Br, 1b: X = I) with [CpFe(CO)2 (OTf)] at 100 °C provides convenient access to halogen-functionalized polyphosphinoboranes [(4-X-C6 H4 )PH-BH2 ]n (2a: X = Br, 2b: X = I). These polymers are useful precursors for post-polymerization functionalization, which is demonstrated by Sonogashira coupling under mild conditions to yield the alkynyl-functionalized polyphosphinoborane [(4-PhCC-C6 H4 )PH-BH2 ]n (3).

中文翻译：

卤素取代的聚膦硼烷的合成和聚合后的功能化，以得到炔烃官能化的衍生物。

卤素官能化的膦硼烷（4-X-C6 H4）PH2·BH3（1a：X = Br，1b：X = I）与[CpFe（CO）2（OTf）]的100°C催化脱氢反应提供了便利获得卤素官能化的聚膦硼烷[（4-X-C6 H4）PH-BH2] n（2a：X = Br，2b：X = I）。这些聚合物是用于聚合后官能化的有用前体，Sonogashira偶联在温和的条件下得到了证明，可得到炔基官能化的聚膦硼烷[（4-PhCC-C6H4）PH-BH2] n（3）。

更新日期：2019-12-27

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