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Title: K2CO3/18-Crown-6-Catalyzed Selective H/D Exchange of Heteroarenes with Bromide as a Removable Directing Group

Journal Article · · Organic Letters
 [1];  [1];  [1];  [1]; ORCiD logo [2]
  1. Nanjing Tech Univ. (China)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)

Here, the K2CO3/18-crown-6-catalyzed H/D exchange of heretoarenes in high atom % deuterium incorporation is disclosed. The use of a weak base as a catalyst leads to excellent site selectivity and broad functional group tolerance. Control experiments indicated that the use of bromide, which enhances the adjacent C–H bond reactivity, as a removable directing group is essential. Moreover, conversion of bromide to other functional groups is also performed to construct other useful deuterated compounds.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC05-00OR22725; 22075135
OSTI ID:
1976038
Journal Information:
Organic Letters, Vol. 25, Issue 17; ISSN 1523-7060
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (6)