1
|
Nolla-Saltiel R, Ariki ZT, Schiele S, Alpin J, Tahara Y, Yokogawa D, Nambo M, Crudden CM. Enantiospecific cross-coupling of cyclic alkyl sulfones. Nat Chem 2024; 16:1445-1452. [PMID: 39103655 DOI: 10.1038/s41557-024-01594-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 07/04/2024] [Indexed: 08/07/2024]
Abstract
Methods to form carbon-carbon bonds efficiently and with control of stereochemistry are critical for the construction of complex molecules. Cross-coupling reactions are among the most efficient and widely used reactions to construct molecules, with reactions enabling the retention or installation of chirality as recent additions to this powerful toolbox. Sulfones are robust, accessible organic electrophiles that have many attractive features as cross-coupling partners; however, since the first example of their use in 1979, there have been no examples of their use in enantioselective, enantiospecific or entantioconvergent cross-couplings. The high acidity of sulfones makes it unclear whether this transformation is even possible outside tertiary systems. Here we report the enantiospecific cross-coupling of cyclic sulfones and Grignard reagents. Up to 99% chirality transfer is observed despite the strong basicity of the Grignard components. In situ monitoring reveals that the cross-coupling is kinetically competitive with competing deprotonation, resulting in a highly enantioselective transformation.
Collapse
Affiliation(s)
- Roberto Nolla-Saltiel
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
| | - Zachary T Ariki
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
| | - Stefanie Schiele
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
| | - Jana Alpin
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
| | - Yasuyo Tahara
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
| | - Daisuke Yokogawa
- Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
| | - Masakazu Nambo
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan.
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Japan.
| | - Cathleen M Crudden
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada.
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan.
- Carbon to Metal Coating Institute, Queen's University, Kingston, Ontario, Canada.
| |
Collapse
|
2
|
Du W, Zhao F, Yang R, Xia Z. Gold-Catalyzed C(sp 3)-C(sp 2) Suzuki-Miyaura Coupling Reaction. Org Lett 2024; 26:3145-3150. [PMID: 38551489 DOI: 10.1021/acs.orglett.4c00755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
A gold-catalyzed C(sp3)-C(sp2) Suzuki-Miyaura coupling reaction facilitated by ligand-enabled Au(I)/Au(III) redox catalysis was developed. The cross-coupling of alkyl organometallics was first realized in the redox catalytic cycle in gold chemistry, without the use of external oxidants. This gold-catalyzed C(sp3)-C(sp2) coupling reaction allows a variety of alkyl chain and useful methyl trifluoroborates to react with aryl and vinyl iodides under very mild conditions, which provides a new reactivity pattern for challenging couplings with alkyl organometallics.
Collapse
Affiliation(s)
- Wenqian Du
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Fen Zhao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650504, P. R. China
| | - Rongjie Yang
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Zhonghua Xia
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| |
Collapse
|
3
|
Bock MJ, Denmark SE. Rapid, Homogenous, B-Alkyl Suzuki-Miyaura Cross-Coupling of Boronic Esters. J Org Chem 2024. [PMID: 38483187 PMCID: PMC11399326 DOI: 10.1021/acs.joc.4c00089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2024]
Abstract
A rapid, anhydrous Suzuki-Miyaura cross-coupling of alkylboronic esters with aryl halides is described. Parallel experimentation revealed that the combination of AntPhos, an oxaphosphole ligand, neopentyldiol alkylboronic esters, and potassium trimethylsilanolate (TMSOK) enables successful cross-coupling. In general, reactions proceed in under 1 h with good yields and high linear/branched (l/b) selectivities. Crucially, two literature examples which previously took >20 h to reach completion were accomplished in a fraction of the time with the method described herein. Mechanistic studies revealed that the reaction proceeds through a stereoretentive pathway and identified the boronic ester skeleton as a predominant pathway for deleterious protodehalogenation.
Collapse
Affiliation(s)
- Matthew J Bock
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Urbana, Illinois 61801, United States
| | - Scott E Denmark
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Urbana, Illinois 61801, United States
| |
Collapse
|
4
|
Delaney CP, Zahrt AF, Kassel VM, Denmark SE. Effects of Ring Size and Steric Encumbrance on Boron-to-Palladium Transmetalation from Arylboronic Esters. J Org Chem 2024. [PMID: 38421803 DOI: 10.1021/acs.joc.3c02629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The structure of the diol from which an arylboronic ester is derived dramatically influences the rate of transmetalation in the Suzuki-Miyaura cross-coupling reaction. Some esters undergo transmetalation more than 20 times faster than the parent arylboronic acid. Herein, investigations into the influence of arylboronic ester ring size and steric properties on the mechanism of transmetalation in the Suzuki-Miyaura reaction are described. Both factors impact the propensity of an arylboronic ester to bind to a dimeric palladium hydroxide complex. The reaction of hindered arylboronic esters derived from 1,2-diols (1,3,2-dioxaborolanes) with palladium hydroxide dimers to form a complex incorporating a Pd-O-B linkage is thermodynamically favorable, but the barrier to coordination is often higher than the barrier to arene transfer. In contrast, the analogous reaction between arylboronic esters derived from 1,3-diols (1,3,2-dioxaborinanes) and palladium hydroxide dimers is thermodynamically unfavorable, as 1,3,2-dioxaborinanes exhibit decreased electrophilicity compared to esters derived from 1,2- or 1,4-diols. These factors also influence the barrier of the arene transfer step, and in many cases, arylboronic esters that do not easily form Pd-O-B linked complexes undergo transmetalation faster than those that do because of hyperconjugative stabilization of the arene transfer transition state.
Collapse
Affiliation(s)
- Connor P Delaney
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Andrew F Zahrt
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Vincent M Kassel
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Scott E Denmark
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| |
Collapse
|
5
|
Xu X, Jiao L. Stereochemistry of the Reactions between Palladacycle Complexes and Primary Alkyl Iodides. Organometallics 2023. [DOI: 10.1021/acs.organomet.3c00042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Xinyu Xu
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100871, China
| | - Lei Jiao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100871, China
| |
Collapse
|
6
|
Roh B, Farah AO, Kim B, Feoktistova T, Moeller F, Kim KD, Cheong PHY, Lee HG. Stereospecific Acylative Suzuki–Miyaura Cross-Coupling: General Access to Optically Active α-Aryl Carbonyl Compounds. J Am Chem Soc 2023; 145:7075-7083. [PMID: 37016901 DOI: 10.1021/jacs.3c00637] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
A novel strategy for the stereospecific Pd-catalyzed acylative cross-coupling of enantiomerically enriched alkylboron compounds has been developed. The protocol features an extremely high level of enantiospecificity to allow facile access to synthetically challenging and valuable chiral ketones and carboxylic acid derivatives. The use of a sterically encumbered and electron-rich phosphine ligand proved to be crucial for the success of the reaction. Furthermore, on the basis of experimental and computational studies, a unique mechanism for the transmetalation, assisted by the noncovalent interactions of the C(sp3)-based organoboron reagent, has been identified.
Collapse
Affiliation(s)
- Byeongdo Roh
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Abdikani Omar Farah
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-2145, United States
| | - Beomsu Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Taisiia Feoktistova
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-2145, United States
| | - Finn Moeller
- Department of Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Kyeong Do Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Paul Ha-Yeon Cheong
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-2145, United States
| | - Hong Geun Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| |
Collapse
|
7
|
Xu N, Liang H, Morken JP. Copper-Catalyzed Stereospecific Transformations of Alkylboronic Esters. J Am Chem Soc 2022; 144:11546-11552. [PMID: 35735669 PMCID: PMC10436227 DOI: 10.1021/jacs.2c04037] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Copper-catalyzed stereospecific cross-couplings of boronic esters are reported. Boron "ate" complexes derived from pinacol boronic esters and tert-butyl lithium undergo stereospecific transmetalation to copper cyanide, followed by coupling with alkynyl bromides, allyl halides, propargylic halides, β-haloenones, hydroxylamine esters, and acyl chlorides. Through this simple transformation, commercially available inexpensive compounds can be employed to convert primary and secondary alkylboronic esters to a wide array of synthetically useful compounds.
Collapse
Affiliation(s)
- Ningxin Xu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Hao Liang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - James P. Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|