916843-29-3

Basic information

• Product Name: 4-[2,7-di-tert-butyl-5-(3,4-diamino-phenyl)-9,9-dimethyl-9H-xanthen-4-yl]-benzoic acid
• Synonyms: 4-[2,7-di-tert-butyl-5-(3,4-diamino-phenyl)-9,9-dimethyl-9H-xanthen-4-yl]-benzoic acid
• CAS NO: 916843-29-3
• Molecular Weight: 548.725
• Mol File: 916843-29-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-[2,7-di-tert-butyl-5-(3,4-diamino-phenyl)-9,9-dimethyl-9H-xanthen-4-yl]-benzoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[2,7-di-tert-butyl-5-(3,4-diamino-phenyl)-9,9-dimethyl-9H-xanthen-4-yl]-benzoic acid(916843-29-3)
• EPA Substance Registry System: 4-[2,7-di-tert-butyl-5-(3,4-diamino-phenyl)-9,9-dimethyl-9H-xanthen-4-yl]-benzoic acid(916843-29-3)

Safety Data

• Hazardous Substances Data: 916843-29-3(Hazardous Substances Data)

Upstream product

• 1575-37-7 4-Bromo-benzene-1,2-diamine 
• 130525-43-8 4,5-dibromo-2,7-di-tert-butyl-9,9-dimethyl-9H-xanthene 
• 851883-09-5 4-(5-bromo-2,7-di-tert-butyl-9,9-dimethyl-9H-xanthen-4-yl)benzoic acid methyl ester 
• 851883-07-3 5-bromo-2,7-di-tert-butyl-4-iodo-9,9-dimethylxanthene 
• 851883-08-4 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzene-1,2-diamine 
• 851883-10-8 4-[2,7-di-tert-butyl-5-(3,4-diamino-phenyl)-9,9-dimethyl-9H-xanthen-4-yl]-benzoic acid methyl ester 

Relevant articles and documents

Hangman salophens

We report here a modular approach for the construction of a new class of compounds, the Hangman salophens. In the Hangman motif, an acid-base functionality "hangs" over the face of a redox cofactor. In contrast to more synthetically intractable porphyrin-based Hangman systems, Hangman salophens permit the facile control of their proton and redox properties for the study of the proton-coupled electron transfer (PCET) activation of small molecules. By investigating the catalase-like disproportionation of H2O2, we show that the presence (1) of a strong proton-donating hanging group (i.e., carboxylic acid) and (2) of electron-donating groups on the redox-active salen imparts significant catalytic activity for the O-O bond activation of small molecule substrates. The contribution of the new ligand framework to furthering our understanding of how PCET can be implemented in the design of active/selective catalysts will be discussed. Copyright