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- Title
Calcium Aluminate Induced Pt(0)‐Pt(δ+) Coupling Boost Catalyzed H−D Exchange Reaction of Arenes with Deuterium Oxide.
- Authors
Jiang, Wenjie; Shao, Fangjun; Cheng, Jiaxu; Ma, Fandong; Wei, Zhongzhe; Zhong, Xing; Wang, Hong; Wang, Jianguo
- Abstract
Deuterium(D)‐labeled aromatics play an essential part in the Yield of fine chemicals. However, deuteration reactions are particularly dependent on the specific chemical environment of the metal to finish the oxidative addition and reductive elimination. Herein, a complex valence Pt/Ca12Al14Ox catalyst was successfully synthesized for the deuteration of toluene using inexpensive D2O. It exhibited high deuteration efficiency, achieving 96% deuteration in just 4 hours, 14% higher than the most commonly Pt/C catalyst. The catalyst can also be reactivated and recycled up to 16 times. Multiple characterization techniques were used to demonstrate the interaction between Pt and Ca12Al14Ox generates the co‐existence of Pt(δ+) and Pt(0). The synergy between Pt(δ+) and Pt(0) can promote the completion of oxidation and elimination reactions. Thus, the complex valence of Pt improves the processes required for H−D exchange and boosts the reaction rate and stability of the hydrogen isotope exchange system.
- Subjects
DEUTERIUM oxide; CALCIUM aluminate; ELIMINATION reactions; ISOTOPE exchange reactions; HYDROGEN isotopes; DEUTERIUM; EXCHANGE reactions; OXIDATIVE addition
- Publication
Asian Journal of Organic Chemistry, 2023, Vol 12, Issue 4, p1
- ISSN
2193-5807
- Publication type
Article
- DOI
10.1002/ajoc.202200662