Synthesis of Boriranes by Double Hydroboration Reactions of N-Heterocyclic Carbene Boranes and Dimethyl Acetylenedicarboxylate.
J Am Chem Soc
; 139(5): 1726-1729, 2017 02 08.
Article
in En
| MEDLINE
| ID: mdl-28106381
ABSTRACT
Reaction of bis-(2,6-diisopropylphenyl)-imidazol-2-ylidene borane with dimethyl acetylenedicarboxylate gives 80% yield of a stable borirane (boracyclopropane) formed by formal double hydroboration along with 5% of the (E)-alkenylborane. DFT calculations suggest a mechanism where divergence to the two products occurs after a common initial stage of hydride transfer from the NHC-borane to the acetylenedicarboxylate.
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01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Am Chem Soc
Year:
2017
Document type:
Article
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