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Haibach MC, Ickes AR, Tcyrulnikov S, Shekhar S, Monfette S, Swiatowiec R, Kotecki BJ, Wang J, Wall AL, Henry RF, Hansen EC. Enabling Suzuki-Miyaura coupling of Lewis-basic arylboronic esters with a nonprecious metal catalyst. Chem Sci 2022; 13:12906-12912. [PMID: 36519062 PMCID: PMC9645418 DOI: 10.1039/d2sc03877c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 10/14/2022] [Indexed: 02/08/2024] Open
Abstract
The high cost and negative environmental impact of precious metal catalysts has led to increased demand for nonprecious alternatives for widely practiced reactions such as the Suzuki-Miyaura coupling (SMC). Ni-catalyzed versions of this reaction have failed to achieve high reactivity with Lewis-basic arylboron nucleophiles, especially pinacolboron esters. We describe the development of (PPh2Me)2NiCl2 as an inexpensive and air-stable precatalyst that addresses this challenge. Under activation by n-BuMgCl, this complex can catalyze the coupling of synthetically important heteroaryl pinacolborons with heteroaryl halides. Mildly basic conditions (aqueous K3PO4) allow the reaction to tolerate sensitive functional groups that were incompatible with other Ni-SMC methods. Experimental and computational studies suggest that catalyst inhibition by substitution of PPh2Me from Ni(ii) intermediates by Lewis basic reactants and products is disfavored relative to more commonly employed ligands in the Ni-SMC, which allows it to operate efficiently in the presence of Lewis bases such as unhindered pyridines.
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Affiliation(s)
- Michael C Haibach
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Andrew R Ickes
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Sergei Tcyrulnikov
- Pfizer Chemical Research and Development, Pfizer Inc. Groton Connecticut 06340 USA
| | - Shashank Shekhar
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Sebastien Monfette
- Pfizer Chemical Research and Development, Pfizer Inc. Groton Connecticut 06340 USA
| | - Rafal Swiatowiec
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Brian J Kotecki
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Jason Wang
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Amanda L Wall
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Rodger F Henry
- Process Research and Development, AbbVie Inc. North Chicago Illinois 60064 USA
| | - Eric C Hansen
- Pfizer Chemical Research and Development, Pfizer Inc. Groton Connecticut 06340 USA
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Wilders AM, Henle J, Haibach MC, Swiatowiec R, Bien J, Henry RF, Asare SO, Wall AL, Shekhar S. Pd-Catalyzed Cross-Coupling of Hindered, Electron-Deficient Anilines with Bulky (Hetero)aryl Halides Using Biaryl Phosphorinane Ligands. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04280] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Alison M. Wilders
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Jeremy Henle
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Michael C. Haibach
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Rafal Swiatowiec
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Jeffrey Bien
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Rodger F. Henry
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Shardrack O. Asare
- Analytical Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Amanda L. Wall
- Analytical Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Shashank Shekhar
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
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