133885-95-7Relevant academic research and scientific papers
Preparation and Some Reactions of 3,5:8,10-Di-1,3-benzo(3,4)-1,2,5-thiadiazolocyclophane
Hatta, Taizo,Mataka, Shuntaro,Tashiro, Masashi,Suzuki, Hiroshi,Numano, Katsutoshi
, p. 289 - 293 (2007/10/02)
Titled 1,2,5-thiadiazolometacyclophane 1 was prepared via thiacyclophane 5 which was obtained by the reaction of di(bromomethyl) 2 with sodium sulfide under phase-transfer-catalyzed conditions.Cyclophane 1 gave the corresponding pyrene derivatives by the oxidative transannular reaction in the reaction with brominating reagent.Reduction of 1 with lithium aluminum hydride followed by acetylation with acetic anhydride gave a 4:1 mixture of cis- and trans-diamide 11 and 12 with a trace amount of cyclophane-ring-cleaved product 13.On the other hand, 13 was obtained as a major product in the reduction with metal sodium and diisobutyl aluminum hydride.
