Search results for: hydroboration

• Reactivity of triphosphinoboranes towards H3B·SMe2: access to derivatives of boraphosphacycloalkanes with diverse substituents

  Publication

  • A. Ordyszewska
  • J. Chojnacki
  • R. Grubba

  - DALTON TRANSACTIONS - Year 2023

  Triphosphinoboranes activated the B–H bond in the BH3 molecule without any catalysts at room temperature. Hydroboration reactions led to boraphosphacyloalkanes with diverse structures. The outcomes of reactions depend on the size of the phosphanyl substituent on the boron atom of the parent triphosphinoborane, where derivatives of boraphosphacyclobutane and boraphosphacyclohexane were obtained. Furthermore, the precursor of triphosphinoboranes,...

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• Convenient and Efficient Diastereoselective Preparation of Functionalized Z -Alkenyl Sulfides

  Publication

  • J. Doroszuk
  • M. Musiejuk
  • Ł. Ponikiewski
  • D. Witt

  - EUROPEAN JOURNAL OF ORGANIC CHEMISTRY - Year 2018

  We have developed an efficient and convenient regio‐ and stereoselective reduction of the alkynyl sulfides with pinacolborane in the presence of copper(I) chloride to produce (Z)‐alkenyl sulfides in good and very good yields. The functionalized alkynyl sulfides are readily available based on the reaction of lithium acetylides with thiotosylates under mild conditions.

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