1
|
L N Rao M, Nand S. Pd-Catalyzed cross-coupling synthesis of 4-aryl-3-formylcoumarins. Org Biomol Chem 2022; 20:1053-1057. [PMID: 35040451 DOI: 10.1039/d1ob02016a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The threefold cross-coupling of triarylbismuth reagents with 4-chloro-3-formylcoumarins furnished the corresponding 4-aryl-3-formylcoumarins in a chemoselective manner with high yields under Pd-catalyzed conditions. This method was successfully applied to electronically different triarylbismuth reagents and 4-chloro-3-formylcoumarins preserving the 3-formyl group in the coumarin scaffold.
Collapse
Affiliation(s)
- Maddali L N Rao
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India.
| | - Sachchida Nand
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India.
| |
Collapse
|
2
|
Pd-catalyzed atom-efficient cross-coupling of triarylbismuth reagents with protecting group-free iodophenylmethanols: Synthesis of biarylmethanols. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
3
|
Pd-catalyzed protecting-group-free cross-couplings of iodophenols with atom-economic triarylbismuth reagents. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
5
|
Maddali LNR, Meka S. Cross-coupling reactivity of 1,1-dichloroalkenes under palladium catalysis: domino synthesis of diarylalkynes. NEW J CHEM 2018. [DOI: 10.1039/c7nj05107g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of diarylalkynes was achieved from the domino cross-coupling reaction of 1,1-dichloroalkenes with triarylbismuth reagents under palladium-catalyzed conditions.
Collapse
Affiliation(s)
- L. N. Rao Maddali
- Department of Chemistry, Indian Institute of Technology Kanpur
- Kanpur-208 016
- India
| | - Suresh Meka
- Department of Chemistry, Indian Institute of Technology Kanpur
- Kanpur-208 016
- India
| |
Collapse
|
6
|
Ramakrishna V, Rani MJ, Reddy ND. A Zwitterionic Palladium(II) Complex as a Precatalyst for Neat-Water-Mediated Cross-Coupling Reactions of Heteroaryl, Benzyl, and Aryl Acid Chlorides with Organoboron Reagents. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701241] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Visannagari Ramakrishna
- Department of Chemistry; Pondicherry University (A Central University); 605014 Puducherry India
| | - Morla Jhansi Rani
- Department of Chemistry; Pondicherry University (A Central University); 605014 Puducherry India
| | | |
Collapse
|
7
|
Catalytic cross-coupling reaction of aryl iodides with triarylbismuths by an N-heterocyclic carbene-PdCl2 based on benzo-9-crown-3 catalyst at room temperature. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
8
|
Ahmad T, Dansereau J, Hébert M, Grand-Maître C, Larivée A, Siddiqui A, Gagnon A. Preparation of 3-O-aryl chloramphenicol derivatives via chemoselective copper-catalyzed O-arylation of (1R,2R)-(−)-N-BOC-2-amino-1-(4-nitrophenyl)-1,3-propanediol using triarylbismuthines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
9
|
Hébert M, Petiot P, Benoit E, Dansereau J, Ahmad T, Le Roch A, Ottenwaelder X, Gagnon A. Synthesis of Highly Functionalized Triarylbismuthines by Functional Group Manipulation and Use in Palladium- and Copper-Catalyzed Arylation Reactions. J Org Chem 2016; 81:5401-16. [PMID: 27231755 DOI: 10.1021/acs.joc.6b00767] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Organobismuthines are an attractive class of organometallic reagents that can be accessed from inexpensive and nontoxic bismuth salts. Triarylbismuthines are particularly interesting due to their air and moisture stability and high functional group tolerance. We report herein a detailed study on the preparation of highly functionalized triarylbismuth reagents by triple functional group manipulation and their use in palladium- and copper-catalyzed C-, N-, and O-arylation reactions.
Collapse
Affiliation(s)
- Martin Hébert
- Université du Québec à Montréal , Département de Chimie, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, Canada , H3C 3P8
| | - Pauline Petiot
- Université du Québec à Montréal , Département de Chimie, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, Canada , H3C 3P8
| | - Emeline Benoit
- Université du Québec à Montréal , Département de Chimie, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, Canada , H3C 3P8
| | - Julien Dansereau
- Université du Québec à Montréal , Département de Chimie, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, Canada , H3C 3P8
| | - Tabinda Ahmad
- Université du Québec à Montréal , Département de Chimie, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, Canada , H3C 3P8
| | - Adrien Le Roch
- Université du Québec à Montréal , Département de Chimie, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, Canada , H3C 3P8
| | - Xavier Ottenwaelder
- Concordia University , Department of Chemistry and Biochemistry, 7141 Sherbrooke Street West, Montréal, Québec, Canada , H4B 1R6
| | - Alexandre Gagnon
- Université du Québec à Montréal , Département de Chimie, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, Canada , H3C 3P8
| |
Collapse
|
10
|
Rao MLN, Dhanorkar RJ. Rapid threefold cross-couplings with sterically bulky triarylbismuths under Pd–Cu dual catalysis. RSC Adv 2016. [DOI: 10.1039/c5ra23311a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The threefold cross-coupling reactivity of sterically highly demanding bulky triarylbismuths was addressed with task specific Pd–Cu dual catalytic conditions.
Collapse
Affiliation(s)
- Maddali L. N. Rao
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur
- India
| | | |
Collapse
|
11
|
Singh MK, Lakshman MK. Diarylmethanes through an Unprecedented Palladium-Catalyzed C-C Cross-Coupling of 1-(Aryl)methoxy-1 H-Benzotriazoles with Arylboronic Acids. ChemCatChem 2015; 7:4156-4162. [PMID: 27134687 PMCID: PMC4847744 DOI: 10.1002/cctc.201500818] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Indexed: 11/09/2022]
Abstract
1-(Aryl)methoxy-1H-benzotriazoles (ArCH2OBt) are bench-stable reagents that are prepared readily from 1H-benzotriazol-1-yl-4-methylbenzenesulfonate (BtOTs) and benzylic alcohols. These compounds, which contain a N-O-C bond, undergo cross-coupling with arylboronic acids by C-O bond scission with catalysts that comprise Pd(OAc)2 and biarylphosphine ligands. Such reactivity of ArCH2OBt derivatives, leading to diarylmethanes, has not been described previously and constitutes a new activation of benzylic alcohols. With regard to the various ligands-metal complexes that support catalytic activity, it appears that those with smaller "percent buried volumes" (%Vbur) provide better outcomes. This factor has been evaluated in the initial optimization studies and in further reactions with difficult coupling partners. Ligand electronics of the biaryl moiety seem to play a lesser role in this type of reaction. The bis-coordinating bis[(2-diphenylphosphino)phenyl]ether appears to be suitable to improve the yields of low-yielding reactions.
Collapse
Affiliation(s)
- Manish K Singh
- Department of Chemistry, The City College and The City University of New York, 160 Convent Avenue, New York, NY 10031
| | - Mahesh K Lakshman
- Department of Chemistry, The City College and The City University of New York, 160 Convent Avenue, New York, NY 10031
| |
Collapse
|
12
|
Cross-coupling study of iodo/chloropyridines and 2-chloroquinoline with atom-economic triarylbismuth reagents under Pd-catalysis. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
13
|
Rao MLN, Dhanorkar RJ. Atom-economic threefold cross-couplings of triarylbismuth reagents with 2-halobenzaldehydes and pot-economic in situ Wittig functionalizations with phosphonium salts. RSC Adv 2014. [DOI: 10.1039/c4ra13348j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
14
|
Rao ML, Dhanorkar RJ. Combined catalysis: Pd-catalyzed two-step one-pot protocol for 2,3-diaryl-1-indenones involving domino synthesis of diarylacetylenes and Heck–Larock annulations. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|