A novel series of 1,3-bis(2-dihydrothiazolyl)thiaalkoxy-p-tert-butylcalix[4]-arenes generated by the reaction between 4,5-dihydrothiazole-2-thiol and the different dibromide calix[4]aryl groups have been synthesized and structurally characterized by IR, H-1 NMR, C-13 NMR, and MS. From their analytical data, it was found that compounds 8, 9, and 10 had cone conformations, whereas compound 11 existed as a mixture conformation. To verify the structure of the synthetic compounds, a single-crystal X-ray structure of compound 8 was obtained.