3202-91-3Relevant academic research and scientific papers
PRODUCTION METHOD OF 2-(HYDROXYPHENYL) BENZOXAZOLES
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Paragraph 0037, (2016/12/07)
PROBLEM TO BE SOLVED: To provide a production method of 2-(hydroxyphenyl) benzoxazoles. SOLUTION: A method of producing 2-(hydroxyphenyl) benzoxazoles is characterized by reacting a 2-nitro phenol compound having, in a molecule, at least one a benzene ring substituted with a hydroxyl group at one and a nitro group at the other of mutually adjacent carbon atoms or a condensed polycyclic hydrocarbon ring comprising the benzene ring, with a methyl phenol compound having a benzene ring substituted with a methyl group and a hydroxyl group. COPYRIGHT: (C)2015,JPOandINPIT
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.
SYNTHESIS AND PROPERTIES OF AZOLES AND THEIR DERIVATIVES. 35. SYNTHESIS OF CERTAIN AZOLES CONTAINING STERICALLY HINDERED PHENOL RESIDUES
Kelarev, V. I.,Shvekhgeimer, S. G.,Koshelev, V. N.,Shvekhgeimer, G. A.,Lunin, A. F.
, p. 721 - 723 (2007/10/02)
The condensation of hydrochlorides of ethyl iminoesters of 4-hydroxy-3,5-di-tert-butylbenzoic and β-(4-hydroxy-3,5-di-tert-butylphenyl)propionic acids with monoethanolamine, o-aminophenol, and o-phenylenediamine was studied.As a result, Δ2-oxaz
