Corrigendum to “Synthesis of 3,4-substituted cyclopentenones via an intramolecular Pauson–Khand reaction of NO linked enynes”: [Tetrahedron Lett. 41 (2000) 9393]

✍ Scribed by Stefan G Koenig; Kristi A Leonard; Ralf S Löwe; David J Austin

• Publisher: Elsevier Science
• Year: 2003
• Tongue: French
• Weight: 61 KB
• Volume: 44
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(03)00672-5

✦ Synopsis

Recently, we discovered that the molecules described as N O bond cleavage products, 15 and 16 in Scheme 5 of our original paper, were incorrectly assigned. A corrected Scheme 5 is shown below.

Based on subsequent studies in this series, it became apparent that SmI 2 treatment of compounds 13 and 14 gives a C O bond cleavage product. This observation is in contrast to what was expected, based on our previous studies in the SmI 2 cleavage of N O bonds. These molecules, however, were fully saturated systems. Therefore, the observed C O cleavage is likely due to the presence of the a,b-unsaturated ketone.