2010 Fiscal Year Final Research Report
Development of Functionalized N-Heterocyclic Carbene Ligands and Their Transition Metal Complexes
| Project/Area Number |
20550057
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Inorganic chemistry
|
|---|
| Research Institution | Yokohama National University |
|---|
Principal Investigator |
YAMAGUCHI Yoshitaka Yokohama National University, 工学研究院, 准教授 (80313477)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
ASAMI Masatoshi 横浜国立大学, 工学研究院, 教授 (20134439)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | NHCカルベン / キラル二座配位子 / 不斉アリル位アルキル化反応 / ハイブリッド型NHC配位子 / インデニル-NHC配位子 / キレート型単核錯体 / 架橋型二核錯体 |
|---|
| Research Abstract |
C_2-Symmetric chiral bidentate NHC ligand precursors with o-xylylene framework and their Mo and Pd complexes were synthesized from chiral 1,2-bis(1-hydroxypropyl)benzene. Asymmetric allylic alkylation reaction using dimethyl malonate catalyzed by Pd complexes generated from the ligand precursors gave the corresponding product in good yield and enantioselectivity. Indenyl-functionalized BEt_3-adduct NHCs were prepared by the reaction of imidazolium pro-ligands with LiBEt_3H. This compound was converted into the indenyl-coordinate molybdenum complex dangling the NHC・BEt_3 moiety as a substituent. The stepwise coordination of NHC afforded a chelate-type mononuclear complex as well as a bimetallic complex.
|
