1998160-90-9

Basic information

• Product Name: 4,4'-(1H-benzo[d]imidazole-4,7-diyl)dianiline
• CAS NO: 1998160-90-9
• Molecular Weight: 300.363
• Mol File: 1998160-90-9.mol

Chemical Properties

• CAS DataBase Reference: 4,4'-(1H-benzo[d]imidazole-4,7-diyl)dianiline(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-(1H-benzo[d]imidazole-4,7-diyl)dianiline(1998160-90-9)
• EPA Substance Registry System: 4,4'-(1H-benzo[d]imidazole-4,7-diyl)dianiline(1998160-90-9)

Safety Data

• Hazardous Substances Data: 1998160-90-9(Hazardous Substances Data)

Upstream product

• 148185-66-4 4,7-dibromo-1H-benzo[d]imidazole 
• 171364-83-3 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)nitrobenzene 

Relevant articles and documents

Constructing Crystalline Covalent Organic Frameworks from Chiral Building Blocks

Covalent organic frameworks (COFs) represent a new type of crystalline porous materials that are covalently assembled from organic building blocks. Construction of functional COFs is, however, a difficult task because it has to meet simultaneously the requirements for crystallinity and functionality. We report herein a facile strategy for the direct construction of chiral-functionalized COFs from chiral building blocks. The key design is to use the rigid scaffold 4,4′-(1H-benzo[d]imidazole-4,7-diyl)dianiline (2) for attaching a variety of chiral moieties. As a first example, the chiral pyrrolidine-embedded building block (S)-4,4′-(2-(pyrrolidin-2-yl)-1H-benzo[d]imidazole-4,7-diyl)dianiline (3) was accordingly synthesized and applied for the successful construction of two chiral COFs, LZU-72 and LZU-76. Our experimental results further showed that these chiral COFs are structurally robust and highly active as heterogeneous organocatalysts.