Metal-Free Catalytic Hydrogenation

✍ Scribed by Preston A. Chase; Gregory C. Welch; Titel Jurca; Douglas W. Stephan

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 228 KB
• Volume: 46
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.200790249

✦ Synopsis

In their Communication the authors stated that "non-transition-metal catalysts for hydrogenation reactions are all but unknown." However, it should be noted that nontransition-metal systems have been shown to effect hydrogenation under more forcing conditions. For example, DeWitt, Ramp, and Trapasso demonstrated hydrogenation with iPr 3 B under 67 atm (1000 psi) H 2 at 220 o C. [1] Similarly, Haenel and co-workers [2] among others [3] showed hydrogenation of coal under almost 148 atm (15 MPa) H 2 and at 280-350 8C using BI 3 or alkyl boranes. As well, superacid systems have also been shown to effect hydrogenation of alkenes at H 2 pressures of at least 35 atm. [4]