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(CAAC)Copper Catalysis Enables Regioselective Three-Component Carboboration of Terminal Alkynes

Journal Article · · ACS Catalysis
 [1];  [2];  [2];  [3];  [4];  [2];  [2];  [5];  [4];  [4];  [2]
  1. The Scripps Research Inst., La Jolla, CA (United States); UCSD
  2. The Scripps Research Inst., La Jolla, CA (United States)
  3. Univ. of California, San Diego, CA (United States). UCSD-CNRS Joint Research Lab.; San Diego State Univ., CA (United States)
  4. Univ. of California, San Diego, CA (United States). UCSD-CNRS Joint Research Lab.
  5. San Diego State Univ., CA (United States)

Here, cyclic(alkyl)(amino)carbene (CAAC) ligands are found to perturb regioselectivity of the copper-catalyzed carboboration of terminal alkynes, favoring the less commonly observed internal alkenylboron regiosomer through an α-selective borylcupration step. A variety of carbon electrophiles participate in the reaction, including allyl alcohols derivatives and alkyl halides. The method provides a straightforward and selective route to versatile tri-substituted alkenylboron compounds that are otherwise challenging to access.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Institutes of Health (NIH); National Science Foundation (NSF); French National Research Agency (ANR)
Grant/Contract Number:
SC0009376
OSTI ID:
1905841
Journal Information:
ACS Catalysis, Journal Name: ACS Catalysis Journal Issue: 12 Vol. 12; ISSN 2155-5435
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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