期刊
ORGANOMETALLICS
卷 30, 期 15, 页码 4060-4066出版社
AMER CHEMICAL SOC
DOI: 10.1021/om200341t
关键词
-
资金
- BP Chemicals Ltd.
- EPSRC
The application of Lewis acids and Lewis acid-functionalized ligands as activators for methyl acetate in the rhodium-catalyzed carbonylation of methyl acetate to acetic anhydride has been investigated. The reaction of methyl acetate with B(C6F5)(3) results in the formation of the adduct [MeOAc center dot B(C6F5)(3)]. The combination of this adduct with [Rh(OAc)-(CO)(2)](2) results in a transfer of the Lewis acid to the rhodium complex, rather than an anticipated oxidative addition reaction. In a second approach, novel Lewis acid-functionalized rhodium-(I) complexes [Rh(CO)Cl(BPP)], [Rh(CO)(2)(EPP)]SbF6, and [Rh(MeCN)(2)(BPP)]SbF6 (BPP = PhB(C6H4PPh2)(2)) have been prepared. The lack of reactivity of [Rh(CO)(2)(BPP)]SbF6 toward MeOAc has shown that the rhodium boron interaction is too strong for activation of methyl acetate, and no carbonylation activity was observed under the conditions used.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据