6633-76-7Relevant articles and documents
Direct conversion of phenols into primary anilines with hydrazine catalyzed by palladium
Qiu, Zihang,Lv, Leiyang,Li, Jianbin,Li, Chen-Chen,Li, Chao-Jun
, p. 4775 - 4781 (2019/05/16)
Primary anilines are essential building blocks to synthesize various pharmaceuticals, agrochemicals, pigments, electronic materials, and others. To date, the syntheses of primary anilines mostly rely on the reduction of nitroarenes or the transition-metal-catalyzed Ullmann, Buchwald-Hartwig and Chan-Lam cross-coupling reactions with ammonia, in which non-renewable petroleum-based chemicals are typically used as feedstocks via multiple step syntheses. A long-standing scientific challenge is to synthesize various primary anilines directly from renewable sources. Herein, we report a general method to directly convert a broad range of phenols into the corresponding primary anilines with the cheap and widely available hydrazine as both amine and hydride sources with simple Pd/C as the catalyst.
HETEROAROMATIC DERIVATIVES AND PHARMACEUTICAL APPLICATIONS THEREOF
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Paragraph 00702, (2015/11/10)
Provided herein are novel heteroaromatic derivatives, or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate, a prodrug, a pharmaceutically acceptable salt or a prodrug thereof, and pharmaceutical compositions containing such compounds. Also provided herein are uses of such compounds or pharmaceutical compositions thereof in the manufacture of a medicament for treating respiratory diseases, especially chronic obstructive pulmonary disease (COPD).
Choline chloride based eutectic solvent: An efficient and reusable solvent system for the synthesis of primary amides from aldehydes and from nitriles
Patil, Umakant B.,Singh, Abhilash S.,Nagarkar, Jayashree M.
, p. 1102 - 1106 (2014/01/06)
Choline chloride: a 2ZnCl2 based deep eutectic solvent was found to be a simple, green, efficient and new solvent system for the preparation of primary amides from aldehydes. The same catalytic system is also applicable for the preparation of amides from nitriles. Good to excellent yields of primary amides were obtained in both these transformations.