Title: Cu(II)-Catalyzed H/D exchange of indole derivatives

Journal Article · · Tetrahedron Letters
 [1];  [1];  [2];  [3];  [3]
  1. Nanjing Tech Univ. (China)
  2. National Tsing Hua Univ., Hsinchu (Taiwan)
  3. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)

Cu(OTf)2 was explored as an efficient catalyst for hydrogen deuterium (H/D) exchange of indole derivatives. The advantage of this reaction is that deuteration selectivity can be adjusted by changing reaction parameters. When the reaction was performed with 10 mol% of Cu(OTf)2 as a catalyst in dioxane at 80 °C, deuteration preferentially occurred at C3 position of indole with high atom% deuterium incorporation. Furthermore, per-deuterated indole derivatives could be achieved by performing the reaction with higher catalyst loading in toluene at 120 °C. In conclusion, performing the reaction on a continuous flow reactor facilitates the scale-up process, affording deuterated products with a throughput of 3.9 g/h.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2301633
Journal Information:
Tetrahedron Letters, Journal Name: Tetrahedron Letters Journal Issue: 1 Vol. 135; ISSN 0040-4039
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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