1632142-49-4Relevant academic research and scientific papers
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
, p. 1565 - 1570 (2014)
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.
Novel bis(hydroxyphenyl)benzoxazole compound
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Paragraph 0029, (2017/03/17)
Provided is a novel bis(hydroxyphenyl)benzoxazole compound useful as resin raw material of epoxy resin or polybenzoxazole resin, or an intermediate or raw material of medicine, agromedicine, dye and electronic material. The solution is providing a bis(hydroxyphenyl)benzoxazole compound represented by the following formula (1) wherein, R1 represents an alkyl group having a carbon number of 1~8, an alkoxyl group having a carbon number of 1~8, a phenyl group or a halogen atom, R2 represents a hydrogen atom, an alkyl group having a carbon number of 1~8, an alkoxyl group having a carbon number of 1~8, a phenyl group or a halogen atom, A represents a cycloalkylidene group having a carbon number of 5~10, n represents 0 or an integer of 1~4.
PRODUCTION METHOD OF 2-(HYDROXYPHENYL) BENZOXAZOLES
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Paragraph 0039, (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
