Cyclopropanation and Isomerization Reactions of β-Diketiminato Boron Complexes
摘要:
The reaction of HC[(CBut)(NAr)](2)Li with BCl3 yielded the azaallyl boron dichloride [ArN=C(Bu-t)C(H)C(Bu-t)-N(Ar)]BCl2 (1), which can be converted to the beta-diketiminato boron dichloride HC[(CBut)(NAr)](2)BCl2 (2) upon heating at 40 C. Reaction of 1 with the bulky lithium salts LiN(SiMe3)(2) and MesLi (Mes = 2,4,6-Me3C6H2) resulted in the cyclopropanation of the CBut group via the deprotonation of the methyl group, while reactions with PhLi and LiNEt2 gave substitution products.
Cyclopropanation and Isomerization Reactions of β-Diketiminato Boron Complexes
摘要:
The reaction of HC[(CBut)(NAr)](2)Li with BCl3 yielded the azaallyl boron dichloride [ArN=C(Bu-t)C(H)C(Bu-t)-N(Ar)]BCl2 (1), which can be converted to the beta-diketiminato boron dichloride HC[(CBut)(NAr)](2)BCl2 (2) upon heating at 40 C. Reaction of 1 with the bulky lithium salts LiN(SiMe3)(2) and MesLi (Mes = 2,4,6-Me3C6H2) resulted in the cyclopropanation of the CBut group via the deprotonation of the methyl group, while reactions with PhLi and LiNEt2 gave substitution products.