29219-64-5Relevant articles and documents
Redox-neutral iron-sulfur promoted transformation of 2-nitrophenols and 2,6-disubstituted p -cresols into 2-arylbenzoxazoles
Saibara, Masahiko,Ashida, Kazuhito,Satomi, Kouji,Iwai, Toshiyuki,Nakai, Takeo,Mihara, Masatoshi,Ito, Takatoshi,Mizuno, Takumi
supporting information, p. 1565 - 1570 (2014/07/08)
A catalyst based on iron and elemental sulfur has been shown to efficiently promote a redox-neutral reaction between 2-nitrophenols and 2,6-disubstituted p-cresols, allowing for the preparation of 2-arylbenzoxazoles in good yields. This synthetic methodology also affords high atom economy without the use of any external oxidizing and/or reducing reagents. This is the first redox-condensation reaction of 2-nitrophenols with 2,6-disubstituted p-cresols. Georg Thieme Verlag Stuttgart New York.