High‐yielding syntheses of two novel cryptands based on bis(m‐phenylene)‐26‐crown‐8 are reported. One‐step [2+2] cyclization of methyl 3,5‐dihydroxybenzoate with tri(ethylene glycol) ditosylate under pseudo‐high‐dilution conditions gave BMP26C8 (1) in 28 % yield. Reduction of 1 with LAH, followed by deprotonation (NaH) and alkylation with propargyl bromide, afforded the dialkynated BMP26C8 (3) in high yield (two‐step 84 %). Unimolecular macrocyclization of 3 through copper(II)‐mediated Eglinton coupling generated the diacetylene‐containing cryptand 4 in 97 % yield. Pd/C‐catalyzed hydrogenation of 4 yielded the cryptand 5 (93 %). Their structures were confirmed by NMR, ESI‐MS, and X‐ray analysis. The complexation behavior of these new cryptands with paraquat was also studied, and it was found that these cryptands bind paraquat more strongly than the corresponding BMP26C8. The association constants (K1 and K2) in acetone solution were determined to be K1 = 914 M–1, K2 = 229 M–1 for complex 42·6 and K1 = 758 M–1, K2 = 190 M–1 for complex 52·6. Moreover, the two new [3]pseudorotaxane‐like complexes 42·6 and 52·6 were also obtained in the solid state, as confirmed by X‐ray analysis.

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