Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 87, Issue 22, Pages 15250-15260Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.2c01778
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Funding
- Rutgers University
- NIH [R35GM133326]
- NSF [CAREER CHE1650766]
- Rutgers University Newark Chancellor's Research Office
- 2115 Talent Development Program of China Agricultural University
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A highly efficient protocol for the Suzuki-Miyaura cross-coupling of aryl fluorosulfonates using well-defined, air-and moisture-stable NHC-Pd(II) chloro dimers is presented. The reaction proceeds in excellent yields and with broad functional group tolerance using a very low loading of [Pd] in the presence of mild K3PO4 base under aqueous conditions. This operationally trivial protocol allows for the activation of C-O bond and is tolerant to various sensitive functional groups.
A highly efficient protocol for the Suzuki-Miyaura cross-coupling of aryl fluorosulfonates by selective -OF cleavage using well-defined, air-and moisture-stable NHC-Pd(II) chloro dimers is presented. The reaction proceeds in excellent yields and with broad functional group tolerance using 0.10-0.20 mol % of [Pd] in the presence of mild K3PO4 base under aqueous conditions. A variety of sensitive functional groups are tolerated in this operationally trivial protocol for C-O bond activation. Selectivity studies and gram scale cross-coupling are presented. The method advances well-defined and highly reactive Pd(II)-NHCs to the cross coupling of readily available, orthogonal, and bench-stable fluorosulfonates as aryl halide surrogates.
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