A new method for the synthesis of phenanthrenes via ligand-free CuBr(2)-catalyzed coupling/cyclization of terminal alkynes with N-tosylhydrazones derived from o-formyl biphenyls has been developed. This new synthesis has wide range of functional group compatibility.
Advanced materials (Deerfield Beach, Fla.), 24(18), 2469-2473 (2012-04-11)
A new multiferroic material, CuBr(2) , is reported for the first time. CuBr(2) has not only a high transition temperature (close to liquid nitrogen temperature) but also low dielectric loss and strong magnetoelectric coupling. These findings reveal the importance of
Chemical communications (Cambridge, England), 48(61), 7634-7636 (2012-06-28)
A method for synthesis of 4-bromoisoquinolones has been developed starting from 2-alkynylbenzaldehydes and primary amines mediated by CuBr under an O(2) atmosphere, where CuBr plays multiple roles to facilitate the present reactions.
An unprecedented, diversity-oriented strategy for the generation of 6,7-dihydro-5H-dibenzo[c,e]azepines and 5,6,7,8-tetrahydrodibenzo[c,e]azocines by a microwave-assisted copper-catalyzed intramolecular A(3)-coupling reaction is presented.
An efficient and practical scheme to synthesize 2-methoxyestradiol has been developed. The key step was the copper-mediated methoxylation using ethyl acetate as a co-catalyst to introduce a methoxyl group. These synthetic procedures of four steps from 17beta-estradiol as starting material
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