Functionalization of N

Autor: Anna, Rempel, Soren K, Mellerup, Felipe, Fantuzzi, Anselm, Herzog, Andrea, Deißenberger, Rüdiger, Bertermann, Bernd, Engels, Holger, Braunschweig
Rok vydání: 2020
Předmět:
Zdroj: Chemistry (Weinheim an Der Bergstrasse, Germany)
ISSN: 1521-3765
Popis: Boron tribromide and aryldihaloboranes were found to undergo 1,3‐haloboration across one W−N≡N moiety of a group 6 end‐on dinitrogen complex (i.e. trans‐[W(N2)2(dppe)2]). The N‐borylated products consist of a reduced diazenido unit sandwiched between a WII center and a trivalent boron substituent (W−N=N−BXAr), and have all been fully characterized by NMR and IR spectroscopy, elemental analysis, and single‐crystal X‐ray diffraction. Both the terminal N atom and boron center in the W−N=N−BXAr unit can be further derivatized using electrophiles and nucleophiles/Lewis bases, respectively. This mild reduction and functionalization of a weakly activated N2 ligand with boron halides is unprecedented, and hints at the possibility of generating value‐added nitrogen compounds directly from molecular dinitrogen.
Boron tribromide and aryldihaloboranes were found to undergo 1,3‐haloboration across one W−N≡N moiety of a group 6 end‐on dinitrogen complex. Both the terminal N atom and boron center in the resulting diazenido W−N=N−BXAr unit can be further derivatized using electrophiles and nucleophiles/Lewis bases, respectively.
Databáze: OpenAIRE
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