A deprotonation pathway to reactive [B]îCH2 boraalkenes.
Dalton Trans
; 51(19): 7695-7704, 2022 May 17.
Article
em En
| MEDLINE
| ID: mdl-35521694
ABSTRACT
The BH compounds IMes(ArF)BH(NTf2) (ArF C6F5 or FpXyl) were converted to the IMes(ArF)BîCH2 boraalkenes in a three step reaction sequence of B-methylation with methyllithium, hydride abstraction and deprotonation. The BîCH2 boraalkenes reacted with elemental sulfur to give a thiaborirane product. They underwent [2+2] cycloaddition reactions with carbon dioxide or sulfur dioxide to give four-membered boron containing heterocycles. The boraalkenes added strongly Lewis acidic boranes at their îCH2 carbon atoms. The corresponding HB(C6F5)2/boraalkene adduct reduced carbon monoxide to a -OCH(C6F5)- moiety inside a five-membered heterocycle at the B-CH2-B template. The boraalkenes reacted with the [(Me2S)AuCl] reagent to form the corresponding (boraalkene)AuCl complexes.
Texto completo:
1
Bases de dados:
MEDLINE
Idioma:
En
Revista:
Dalton Trans
Assunto da revista:
QUIMICA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Alemanha