The alkyl chains lengths significantly influenced the chemicalyields of the bisresorcinarenes. Bisresorcinarenes 1a−d wereobtained in good yields, ranging from 97 to 76% (entry 9, 27,45, and 63), but the yield of 1e dropped significantly toapproximately 50% (entry 74). However, a bisresorcinarenepossessing alkyl chains longer than 14 carbons has not yet beenobtained, and this might be the limit of these reactionconditions.