618461-97-5Relevant academic research and scientific papers
Borontribromide-mediated C-C bond formation in cyclic ketones: A transition metal free approach
Ahmad, Imran,Pathak, Vinay,Vasudev, Prema G.,Maurya, Hardesh K.,Gupta, Atul
, p. 24619 - 24634 (2014/07/07)
Borontribromide (BBr3) is a well-known demethylating agent. The current investigation was focused on a new application of borontribromide as a C-C bond forming agent in cyclic ketones. In this study, borontribromide mediated C-C bond formation reactions of tetralones, chromenone, thiochromenone and indanones were explored. A methoxy group containing ketones showed selective C-C bond formation reaction instead of demethylation of the methoxy group. MM2 steric energy calculations for the final products showed that the reaction favored the formation of exo- or endo-cyclic double bond containing products, depending upon their low MM2 steric energy in a specific frame structure, as observed in X-ray crystallography. A comprehensive crystallographic and pi-stacking analysis of product 10a demonstrated the formation of 10a as an enantiomeric mixture, and its centre of inversion was stabilized by a set of three unique pi-pi interactions.
Design and synthesis of 3-phenyl tetrahydronaphthalenic derivatives as new selective MT2 melatoninergic ligands
Yous, Said,Durieux-Poissonnier, Sophie,Lipka-Belloli, Emmanuelle,Guelzim, Halim,Bochu, Christophe,Audinot, Valerie,Boutin, Jean A.,Delagrange, Philippe,Bennejean, Caroline,Renard, Pierre,Lesieur, Daniel
, p. 753 - 759 (2007/10/03)
Tetrahydronaphthalenic analogues of melatonin have been synthesized and evaluated as melatonin receptor ligands. Introduction of a phenyl substituent in the 3-position of the tetraline ring allows to obtain MT2 selective ligands. Activity and M
