396-12-3Relevant articles and documents
PIII/PV=O Catalyzed Cascade Synthesis of N-Functionalized Azaheterocycles
Li, Gen,Luzung, Michael R.,Nykaza, Trevor V.,Radosevich, Alexander T.,Yang, Junyu
supporting information, p. 4505 - 4510 (2020/02/05)
An organocatalytic method for the modular synthesis of diverse N-aryl and N-alkyl azaheterocycles (indoles, oxindoles, benzimidazoles, and quinoxalinediones) is reported. The method employs a small-ring organophosphorus-based catalyst (1,2,2,3,4,4-hexamethylphosphetane P-oxide) and a hydrosilane reductant to drive the conversion of ortho-functionalized nitroarenes into azaheterocycles through sequential intermolecular reductive C?N cross coupling with boronic acids, followed by intramolecular cyclization. This method enables the rapid construction of azaheterocycles from readily available building blocks, including a regiospecific approach to N-substituted benzimidazoles and quinoxalinediones.
Preparation method of 3-hydroxyphenyl trifluoromethyl ether
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Paragraph 0081; 0084; 0085; 0095; 0099; 0100; 0111; 0112, (2017/09/05)
The invention provides a preparation method of 3-hydroxyphenyl trifluoromethyl ether. The preparation method comprises the following steps: taking 4-trifluoromethoxyaniline as a raw material; and successively carrying out acetylation, nitrification, deacetylation, deaminizating, reduction and hydrolysis reaction on the 4-trifluoromethoxyaniline to obtain the 3-hydroxyphenyl trifluoromethyl ether. The preparation method is high in yield of products, simple to operate and low in production cost; and industrialization is facilitated.
SUBSTITUTED PYRIDINE AND PYRAZINE BMI-1 INHIBITORS
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Page/Page column 208, (2015/06/08)
Amine substituted pyridine and pyrazine compounds and forms thereof that inhibit the function and reduce the level of B -cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.