Syntheses and Structural Properties of Cyclic Tetrathiadiynes

✍ Scribed by Christoph Benisch; Sabine Bethke; Rolf Gleiter; Thomas Oeser; Hans Pritzkow; Frank Rominger

• Book ID: 102676636
• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 542 KB
• Volume: 2000
• Category: Article
• ISSN: 1434-193X
• DOI: 10.1002/1099-0690(200007)2000:13<2479::aid-ejoc2479>3.0.co;2-9

✦ Synopsis

The four-component cyclization of dilithium acetylide with dithiocyanatoalkanes yielded the hitherto unknown tetrathiacyclodiynes 34, 38, 41, and 43 in moderate yields. The use of the trimethylsilyl protecting group allowed a more efficient and flexible stepwise approach with good yields. The resulting tetrathiacyclodiynes 25-44 were investigated by X-