854669-43-5

Upstream product

• 24424-99-5 di-tert-butyl dicarbonate 
• 132268-08-7 1,3-dibromo-5-(tert-butyl)-2-methoxybenzene 
• 473269-70-4 5-tert-butyl-2-methoxybenzene-1,3-diamine 
• 854669-22-0 N,N'-bis(3-bromo-5-tert-butyl-2-methoxyphenyl)-5-tert-butyl-2-methoxy-1,3-phenylenediamine 

Downstream Products

• 1154745-03-5 N-{3-[3-(3-bromo-5-tert-butyl-2-methoxyanilino)-5-tertbutyl-2-methoxyanilino]-5-tert-butyl-2-methoxyphenyl}-N',N'-di(tert-buthoxycarbonyl)-5-tert-butyl-2-methoxy-1,3-phenylenediamine 

Relevant academic research and scientific papers

Regioselectively N-methylated azacalix[8]arene octamethyl ether prepared by catalytic aryl amination reaction using a temporal N-silylation protocol

(Chemical Equation Presented) A temporal N-silylation protocol in the catalytic aryl amination reaction has been devised to prepare nitrogen-bridged calixarene analogues. The protocol involves a smooth in situ N-silylation before aryl amination reaction, followed by spontaneous cleavage of the N-Si bond in the usual workup process, to furnish secondary aromatic amines as the cross-coupled product with no silyl group on the nitrogen atom. A successful application to the preparation of regioselectively N-methylated azacalix[8]arene is described, together with the crystallographic analysis.

Exhaustively methylated azacalix[4]arene: Preparation, conformation, and crystal structure with exclusively CH/π-controlled crystal architecture

(Chemical Equation Presented) Described are the preparation, conformation, and crystal structure of exhaustively methylated azacalix[4]arene involving nitrogen atoms as bridging units. NMR and X-ray crystallographic analysis have demonstrated that this no