136138-26-6Relevant academic research and scientific papers
Dibrominative Spirocyclization of 2-Butynolyl Anilides: Synthesis of gem-Dibromospirocyclic Benzo[ d][1,3]oxazines and Their Application in the Synthesis of 4 H-Furo[3,2- b]indoles
Chaisan, Nattawadee,Ruengsangtongkul, Sureeporn,Tummatorn, Jumreang,Ruchirawat, Somsak,Chainok, Kittipong,Thongsornkleeb, Charnsak
, p. 4671 - 4698 (2021/04/06)
The combination of catalytic aqueous hydrochloric acid (HCl) and N-bromosuccinimide (NBS) generated electrophilic bromine monochloride (BrCl), which readily induced spiroannulation of 2-alkynolyl anilides (n = 1-3) to form gem-dibromospirocyclic benzo[d][
A flexible approach to Pd-catalyzed carbonylations via aroyl dimethylaminopyridinium salts
Quesnel, Jeffrey S.,Fabrikant, Alexander,Arndtsen, Bruce A.
, p. 295 - 300 (2015/12/30)
4-Dimethylaminopyridine (DMAP) is shown to undergo Pd/PtBu3 catalyzed coupling with aryl halides and carbon monoxide to form electrophilic aroyl-DMAP salts. The reaction is easily scalable to prepare multigram quantities with low catalyst loadings, while the precipitation of these salts as they form leads to products with low impurities. These reagents rapidly react with a variety of nucleophiles, including those that contain potentially incompatible functional groups under standard carbonylative conditions.
Intermolecular coupling of 2-iodoanilides with benzoxazoles: Synthesis of N-(2-Benzoxazol-2-ylphenyl)benzamides via C-H activation
Sasmal, Swarnendu,Sen, Indira,Hall, Roger G.,Pal, Sitaram
supporting information, p. 1374 - 1377 (2015/03/04)
Using CuI/xantphos/Pd(OAc)2 catalytic system, the intermolecular C-C cross coupling between benzoxazoles and ortho-haloanilides has been developed in moderate to good yields. The procedure tolerates a series of functional groups on benzoxazole, such as ester, chloro, methyl, and methoxy groups. This divergent approach provides access to various N-(2-Benzoxazol-2-ylphenyl)amides.
