Chemistry Letters, Vol.42, No.6, 604-605, 2013
Indium Triflate-promoted Synthesis of Novel 1,2,3-Triazole-, and Isoxazole-substituted Xanthene-1,8(2H)-dione Derivatives
An efficient synthetic protocol has been developed for the synthesis of the novel 1,2,3-triazole- and isoxazole-substituted xanthene-1,8(2H)-dione derivatives 3 and 5, respectively, from the reaction of 1,2,3-triazole-4-carbaldehyde 2 or isoxazole-5-aldehyde 4 with cyclohexanedione 1, using indium triflate as a catalyst.