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Ligand Influence on Carbonyl Hydroboration Catalysis by Alkali Metal Hydridotriphenylborates [(L)M][HBPh3 ] (M=Li, Na, K)
Ligand Influence on Carbonyl Hydroboration Catalysis by Alkali Metal Hydridotriphenylborates [(L)M][HBPh3 ] (M=Li, Na, K)
- Source :
- Chemistry - A European Journal. 23:14292-14298
- Publication Year :
- 2017
- Publisher :
- Wiley, 2017.
-
Abstract
- Alkali metal hydridotriphenylborates [(L1 )M][HBPh3 ] (L1 =Me6 TREN; M=Li, Na, K) chemoselectively catalyze the hydroboration of carbonyls and CO2 , with lithium being the most active system. A new series of complexes [(L2 )M][HBPh3 ] [M=Li (1), Na (2), K (3)] featuring the cyclen-derived macrocyclic polyamine Me4 TACD (L2 ) were synthesized in a "one-pot" fashion and fully characterized including X-ray crystallography. In the crystal, 1-3 exhibit wide variation in metal coordination of the [HBPh3 ]- anion from lithium to potassium. The structures differ from those in [(L1 )M][HBPh3 ]. Effects of coordination of L1 , L2 , and other N- and O-donor multidentate ligands on [Li(HBPh3 )] were used to rationalize the catalytic activity in carbonyl hydroboration.
- Subjects :
- chemistry.chemical_classification
Denticity
010405 organic chemistry
Chemistry
Stereochemistry
Ligand
Organic Chemistry
chemistry.chemical_element
General Chemistry
010402 general chemistry
Alkali metal
01 natural sciences
Medicinal chemistry
Catalysis
0104 chemical sciences
Coordination complex
Metal
Hydroboration
visual_art
visual_art.visual_art_medium
Lithium
Subjects
Details
- ISSN :
- 09476539
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Chemistry - A European Journal
- Accession number :
- edsair.doi...........ce2ef7605b888389c294f9d373f72d3d
- Full Text :
- https://doi.org/10.1002/chem.201702818