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Synthesis of Polyether Cyclophanes Through Rhodium-Catalyzed Cross-Alkyne Cyclotrimerization.

✍ Scribed by Ken Tanaka; Hiromi Sagae; Kazuki Toyoda; Keiichi Noguchi


Publisher
John Wiley and Sons
Year
2006
Weight
26 KB
Volume
37
Category
Article
ISSN
0931-7597

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Synthesis of Polyether Cyclophanes throu
✍ Ken Tanaka; Hiromi Sagae; Kazuki Toyoda; Keiichi Noguchi πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 191 KB

## Abstract Cross‐cyclotrimerizations of ether‐linked Ξ±,ω‐diynes and dimethyl acetylenedicarboxylate in the presence of a catalytic amount of cationic rhodium(I)/H~8~‐BINAP complex give [7]–[21]polyether cyclophanes in good yield. [8]–[9]Ester cyclophanes were also synthesized from the correspondin