42908-58-7Relevant academic research and scientific papers
Regioselective annulation of unsymmetrical 1,2-phenylenebis(diaryl/diheteroarylmethanol): A facile synthesis of anthracene, tetracene, and naphtho[b]thiophene analogues
Sivasakthikumaran, Ramakrishnan,Rafiq, Settu Muhammad,Sankar, Elumalai,Clement, J. Arul,Mohanakrishnan, Arasambattu K.
, p. 7816 - 7835 (2015/12/31)
A systematic study on the regioselective cyclization of benzene- and naphthalene-based unsymmetrical diols with HBr (33 %) in acetic acid at room temperature led to the formation of annulation products. By using this method, synthesis of a wide variety of anthracene, tetracene and naphtho[b]thiophene analogues was achieved in good to excellent yields. By employing HBr (33 %) in acetic acid as a catalyst for regioselective cyclization of unsymmetrical diols was very facile and devoid of commonly encountered dihydroisobenzofuran formation. Regioselective cyclization of benzene- and naphthalene-based unsymmetrical diols with HBr (33 %) in acetic acid at room temperature led to the formation of annulated arenes and heteroarenes in good to excellent yields.
Improved synthesis of aryl-substituted anthracenes and heteroacenes
Li, Guijie,Zhou, Shaolin,Su, Guowei,Liu, Yuanhong,Wang, Peng George
, p. 9830 - 9833 (2008/03/28)
(Chemical Equation Presented) A Bronsted acid-catalyzed highly efficient construction of substituted arylanthracenes and heteroacenes is described, which is assumed to be initiated through the facile formation of a benzylic cation intermediate. This method offers several advantages in comparison with known aromatic cyclodehydration reactions such as high selectivities, mild reaction conditions, and easily accessible starting materials.
Synthesis and Reaction of α,α'-Diphenylphthalyl Bromide with Disodiumtetracarbonylferrate
Azam, K. A.,Hashem, M. A.,Kazi, A. B.,Molla, A. H.,Ullah, S. S.
, p. 662 - 664 (2007/10/02)
Reaction of α,α'-diphenylphthalyl bromide (II) with disodiumtetracarbonylferrate occurs in a stereospecific manner to give the ?-bonded complex (III) in which Kekule structure of the benzene ring is destroyed.
