Iridium(I)-catalyzed hydrogen peroxide oxidation of hydroxamic acids and hetero Diels–Alder reaction of the acyl nitroso intermediates with cyclopentadiene

✍ Scribed by Seiji Iwasa; Ahmad Fakhruddin; Yasuyuki Tsukamoto; Masayuki Kameyama; Hisao Nishiyama

• Publisher: Elsevier Science
• Year: 2002
• Tongue: French
• Weight: 68 KB
• Volume: 43
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(02)01277-7

✦ Synopsis

Ir(I)(coe)

2 Cl] 2 (2 mol%)-catalyzed hydrogen peroxide oxidation of hydroxamic acids in the presence of cyclopentadiene gave the corresponding cycloadducts up to 97% yield. With a catalyst loading of 0.05 mol%, a maximum TON was attained to 740.