Efficient one-pot synthesis of 14-aryl-14 -dibenzo[ , ]xanthene derivatives promoted by niobium pentachloride
نویسندگان
چکیده
A simple and efficient procedure for the synthesis of 14-aryl-14H-dibenzo[a,j ]xanthene derivatives through one-pot condensation of 2-naphthol with aryl aldehydes in the presence of niobium pentachloride is described. The reactions were carried out using 25 mole % of NbCl5, at ambient temperature, and in acceptable reaction times, affording excellent yields of the products. c © 2014 Institute of Chemistry, Slovak Academy of Sciences
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