Facile Isolation of Bisimines Based on 3,3'-Diaminobenzidine: Direct Access to Unsymmetrical Bimetallic Salphen Building Blocks

详细信息    查看全文

• 作者：Simona Curreli ; Eduardo C. Escudero-Adá ; n ; Jordi Benet-Buchholz ; Arjan W. Kleij
• 刊名：Journal of Organic Chemistry
• 出版年：2007
• 出版时间：August 31, 2007
• 年：2007
• 卷：72
• 期：18
• 页码：7018 - 7021
• 全文大小：99K
• 年卷期：v.72,no.18(August 31, 2007)
• ISSN：1520-6904

文摘

Diimines obtained from 3,3'-diaminobenzidine and tert-butyl-substituted salicylaldehydes in MeOH can be readily isolatedin 60-90% yield and were obtained as a mixture ofgeometrical isomers. Two distinct diimine intermediates (4and 5) with a higher molecular symmetry as related to theother isomeric diimine products were both isolated bycrystallization of which 5 was subsequently used to demonstrate that nonsymmetrical bis-salphen complexes withdifferent functional groups and metal centers can be assembled via a three-component one-pot procedure.