An “On-Demand”, Selective Dehydrogenative Borylation or Hydroboration of Terminal Alkynes Using Zn2+-based Catalyst

Kuldeep Jaiswal, Kristina Groutchik, Deependra Bawari, Roman Dobrovetsky

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

An air-stable dicationic Zn2+ complex (1) in a tripod-type ligand with non-bound phosphorus base and three pyridinyl “arms” (TPPh) was synthesized. Remarkably, while 2 mol% of 1 at room temperature selectively catalyzed dehydrogenative borylation of terminal alkynes with HBPin, a lower loading of 1 (0.5 mol%) at 90 °C selectively promoted hydroboration reaction of the same alkynes skipping the dehydrogenative borylation step. The mode of action of 1 was proposed based on experimental observations as well as the mechanism of dehydrogenative borylation was studied by DFT computations.

اللغة الأصليةالإنجليزيّة
رقم المقالe202200004
دوريةChemCatChem
مستوى الصوت14
رقم الإصدار9
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 6 مايو 2022

All Science Journal Classification (ASJC) codes

  • !!Catalysis
  • !!Physical and Theoretical Chemistry
  • !!Organic Chemistry
  • !!Inorganic Chemistry

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