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Chi D, Qi H, Wang L, Chen S. Pd-Catalyzed cascade Heck cyclization/carbonylation of indoles with aryl formates: enantioselective construction of indolo[2,1- a]isoquinolines. Chem Commun (Camb) 2024. [PMID: 39046243 DOI: 10.1039/d4cc02577f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
An efficient palladium-catalyzed cascade cyclization/carbonylation of indoles with aryl formates to access ester-functionalized indolo[2,1-a]isoquinoline scaffolds has been developed. In addition, an asymmetric variant is also achieved using a chiral phosphine ligand, affording the indolo[2,1-a]isoquinoline products in good yields and enantioselectivities.
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Affiliation(s)
- Dongmei Chi
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Hongbo Qi
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Leming Wang
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
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Chen X, Liang Y, Wang WW, Miao C, Chu XQ, Rao W, Xu H, Zhou X, Shen ZL. Palladium-Catalyzed Esterification of Aryl Fluorosulfates with Aryl Formates. Molecules 2024; 29:1991. [PMID: 38731482 PMCID: PMC11085239 DOI: 10.3390/molecules29091991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
An efficient palladium-catalyzed carbonylation of aryl fluorosulfates with aryl formates for the facile synthesis of esters was developed. The cross-coupling reactions proceeded effectively in the presence of a palladium catalyst, phosphine ligand, and triethylamine in DMF to produce the corresponding esters in moderate to good yields. Of note, functionalities or substituents, such as nitro, cyano, methoxycarbonyl, trifluoromethyl, methylsulfonyl, trifluoromethoxy, fluoro, chloro, bromo, methyl, methoxy, N,N-dimethyl, and [1,3]dioxolyl, were well-tolerated in the reactions, which could be kept for late-stage modification. The reactions employing readily available and relatively robust aryl fluorosulfates as coupling electrophiles could potentially serve as an attractive alternative to traditional cross-couplings with the use of aryl halides and pseudohalides as substrates.
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Affiliation(s)
- Xue Chen
- Technical Institute of Fluorochemistry (TIF), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China; (X.C.); (Y.L.); (W.-W.W.); (X.-Q.C.)
| | - Yuan Liang
- Technical Institute of Fluorochemistry (TIF), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China; (X.C.); (Y.L.); (W.-W.W.); (X.-Q.C.)
| | - Wen-Wen Wang
- Technical Institute of Fluorochemistry (TIF), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China; (X.C.); (Y.L.); (W.-W.W.); (X.-Q.C.)
| | - Chengping Miao
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China;
| | - Xue-Qiang Chu
- Technical Institute of Fluorochemistry (TIF), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China; (X.C.); (Y.L.); (W.-W.W.); (X.-Q.C.)
| | - Weidong Rao
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Hao Xu
- Technical Institute of Fluorochemistry (TIF), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China; (X.C.); (Y.L.); (W.-W.W.); (X.-Q.C.)
| | - Xiaocong Zhou
- Technical Institute of Fluorochemistry (TIF), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China; (X.C.); (Y.L.); (W.-W.W.); (X.-Q.C.)
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China;
| | - Zhi-Liang Shen
- Technical Institute of Fluorochemistry (TIF), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China; (X.C.); (Y.L.); (W.-W.W.); (X.-Q.C.)
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Pan YY, Zhu XW, Shi L, Jiang G, Wu XX. Palladium-Catalyzed Heck Cyclization with P(O)H Compounds to Construct Phosphinonyl-Azaindoline and -Azaoxindole Derivatives. J Org Chem 2023; 88:9843-9852. [PMID: 37433020 DOI: 10.1021/acs.joc.3c00521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
We report herein a concise method for the construction of phosphinonyl-azaindoline and -azaoxindole derivatives via a palladium-catalyzed cascade cyclization with P(O)H compounds. Various H-phosphonates, H-phosphinates, and aromatic secondary phosphine oxides are all tolerated under the reaction conditions. Furthermore, the phosphinonyl-azaindoline isomer families such as 7-, 5-, and 4-azaindolines could be synthesized in moderate to good yields.
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Affiliation(s)
- Yi-Yun Pan
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Xi-Wei Zhu
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Lei Shi
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Guomin Jiang
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Xin-Xing Wu
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
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Molnár Á. Recent Advances in the Synthesis of Five‐membered Nitrogen Heterocycles Induced by Palladium Ions and Complexes. ChemistrySelect 2023. [DOI: 10.1002/slct.202300153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- Árpád Molnár
- Department of Organic Chemistry University of Szeged Dóm tér 8 6720 Szeged Hungary
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