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Preparation and Structures of Dithia(1,3)pyreno[3.3.n]metacyclophanes.

✍ Scribed by Kan Tanaka; Hiroyuki Tsuchiya; Yoshiki Kakinaga; Toru Hironaka; Takehiko Yamato


Publisher
John Wiley and Sons
Year
2003
Weight
52 KB
Volume
34
Category
Article
ISSN
0931-7597

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## Abstract The syntheses of 2,11‐dithia[3,3]orthometacyclophane (5) and 2,11‐dithia[3,3]orthoparacyclophane (6) by dithiol‐dibromide coupling are described. Whereas the yield of 5 is not significantly affected by the substrate pairing, that of 6 is. Both compounds exhibit a temperature‐dependent ^

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A new cyclophane, 10,20-dibromo-2,3,12,13-tetrathia[4.4]metacyclophane (l), has been synthesized by the oxidative coupling reaction of 2,6bis(mercaptomethy1)-1-bromobenzene with 12. Both syn and anti isomers of 1 can be isolated at room temperature. The thermal sulfur extrusion reaction of anti-1 wi