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Title: Pd-PEPPSI: A General Pd-NHC Precatalyst for Suzuki–Miyaura Cross-Coupling of Esters by C–O Cleavage
Award ID(s):
1650766
NSF-PAR ID:
10055408
Author(s) / Creator(s):
; ;
Date Published:
Journal Name:
Organometallics
Volume:
36
Issue:
19
ISSN:
0276-7333
Page Range / eLocation ID:
3784 to 3789
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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  1. N-Acyl-hydantoins have emerged as novel acyl transfer reagents for the synthesis of ketones via selective N–C(O) cleavage. Herein, we report two new protocols for the cross-coupling of N-acyl-5,5-dimethylhydantoins using versatile and readily accessible Pd–PEPPSI or Pd/phosphine catalysts. The acyl Suzuki reactions afford biaryl ketones in good to excellent yields under operationally-simple conditions using commercially-available, bench- and air-stable twisted N-acyl-hydantoins as acyl donors. The method complements and expands on the previous protocol for the cross-coupling of N-acyl-hydantoins (Org. Process Res. Dev. 2018, 22, 1188). 
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