Hydroboration with pyridine borane at room temperature.
J Am Chem Soc
; 127(16): 5766-7, 2005 Apr 27.
Article
em En
| MEDLINE
| ID: mdl-15839656
ABSTRACT
Treatment of pyridine borane (Py.BH3) with iodine, bromine, or strong acids affords activated Py.BH2X complexes that are capable of hydroborating alkenes at room temperature. Evidence is presented for an unusual hydroboration mechanism involving leaving group displacement. In contrast to THF.BH3, hydroboration with Py.BH2I selectively affords the monoadducts. The crude hydroboration products are converted into synthetically useful potassium alkyltrifluoroborate salts upon treatment with methanolic KHF2.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Piridinas
/
Compostos de Boro
/
Álcoois
/
Alcenos
/
Alcinos
/
Cetonas
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article