Simple, Efficient, and Stereoselective Oxidation of Triphenylfurans to cis-But-2-ene-1,4-diones.

Synthesis and [4+2] Cycloaddition of (2R

Synthesis and [4+2] Cycloaddition of (2R,2′R)-N,N′-Fumaroylbis[fenchane-8,2-sultam] (=(2E)-1,4-Bis[(3aS,6S,7aR)-1,4,5,6,7,7a-hexahydro-7,7-dimethyl-2,2-dioxido-3H-3a,6-methano-2,1-benzothiazol-1-yl]but-2-ene-1,4-dione) to Cyclopentadiene

✍ Anna M. Piątek; Agnieszka Chojnacka; Christian Chapuis; Janusz Jurczak 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 German ⚖ 167 KB

## Abstract The now corrected X‐ray structure of (2__R__)‐bornane‐10,2‐sultam ((−)‐**1a**), as well as that of its already published __N__‐crotonoyl derivative (−)‐**1d**, were compared with those of the newly synthesized (2__R__)‐fenchane‐8,2‐sultam ((+)‐**5a**), as well as its __N__‐crotonoyl der