5998-46-9

Upstream product

• 99-89-8 4-Isopropylphenol 

Downstream Products

• 59098-17-8 5-isopropyl-2-{4-[2-(5-methyl-2-phenyl-2H-[1,2,3]triazol-4-yl)-vinyl]-phenyl}-benzooxazole 
• 59098-16-7 5-isopropyl-2-{4-[2-(2-phenyl-2H-[1,2,3]triazol-4-yl)-vinyl]-phenyl}-benzooxazole 
• 59099-35-3 5-isopropyl-2-{4-[4-(4-phenyl-[1,2,3]triazol-2-yl)-styryl]-phenyl}-benzooxazole 
• 59098-95-2 5-isopropyl-2-{4-[4-(2-phenyl-2H-[1,2,3]triazol-4-yl)-styryl]-phenyl}-benzooxazole 

Relevant academic research and scientific papers

Cu-Catalyzed Synthesis of Benzoxazole with Phenol and Cyclic Oxime

A Cu-catalyzed straightforward synthesis of benzoxazoles from free phenols and cyclic oxime esters is reported. The mild reaction conditions tolerate various electron-withdrawing and electron-donating functional groups on both substrates, affording benzoxazoles in moderate to good yields. With this protocol, large-scale syntheses of Ezutromid and Flunoxaprofe in one or two steps are demonstrated. A catalytic mechanism, which includes Cu-catalyzed amination via inner-sphere electron transfer and consequent annulation, is proposed.