1
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Kumar S, Vaishanv NK, Mohanan K. Efficient Construction of 3‐Fluoroalkylated Oxindoles Enabled by Zwitterion Catalysis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sandeep Kumar
- Central Drug Research Institute Medicinal and Process Chemistry Division Lucknow INDIA
| | | | - Kishor Mohanan
- CSIR-Central Drug Research Institute Medicinal and Process Chemistry Sector-10Jankipuram ExtensionSitapur Road 226031 Lucknow INDIA
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2
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Xiong B, Xu S, Xu W, Liu Y, Zhang L, Tang K, Yin SF, Wong WYR. Silver-Catalyzed Regioselective 1,6-Hydroarylation of para-Quinone Methides with Anilines and Phenols. Org Chem Front 2022. [DOI: 10.1039/d2qo00541g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient method for the silver-catalyzed regioselective 1,6-hydroarylation of para-quinone methides (p-QMs) with anilines and phenols has been established. Without the need for pre-protection, a broad range of...
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3
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Xu S, Xie J, Liu Y, Xu W, Tang KW, Xiong B, Wong WY. Silver-Catalyzed Regioselective Phosphorylation of para-Quinone Methides with P(III)-Nucleophiles. J Org Chem 2021; 86:14983-15003. [PMID: 34665625 DOI: 10.1021/acs.joc.1c01703] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A simple and efficient method for the silver-catalyzed regioselective phosphorylation of para-quinone methides (p-QMs) with P(III)-nucleophiles (P(OR)3, ArP(OR)2, Ar2P-OR) has been established via Michaelis-Arbuzov-type reaction. A broad range of P(III)-nucleophiles and para-quinone methides are well tolerated under the mild conditions, giving the expected diarylmethyl-substituted organophosphorus compounds with good to excellent yields. Moreover, a series of corresponding enantiomers can be obtained by employing dialkyl arylphosphonite (ArP(OR)2) as substrates. The control experiments and 31P NMR tracking experiments were also performed to gain insights for the plausible reaction mechanism. This protocol may have significant implications for the formation of C(sp3)-P bonds in Michaelis-Arbuzov-type reactions.
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Affiliation(s)
- Shipan Xu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, P. R. China
| | - Jun Xie
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, P. R. China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, P. R. China
| | - Weifeng Xu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, P. R. China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, P. R. China
| | - Biquan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, P. R. China.,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China
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4
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Zhang GM, Zhang H, Wang B, Wang JY. Boron-catalyzed dehydrative allylation of 1,3-diketones and β-ketone esters with 1,3-diarylallyl alcohols in water. RSC Adv 2021; 11:17025-17031. [PMID: 35479693 PMCID: PMC9031380 DOI: 10.1039/d1ra01922h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/21/2021] [Indexed: 11/21/2022] Open
Abstract
A metal-free catalytic allylation with atom economy and green environment friendly was developed. Allylic alcohols could be directly dehydrated in water by B(C6F5)3, without using any base additives. The reaction can afford the corresponding monoallylated product in moderate to high yield and has been performed on a gram-scale, and a quaternary carbon center can be constructed for the active methine compounds of 1,3-diketones or β-ketone esters in this process. The product can be further converted, such as the synthesis of tetra-substituted pyrazole compounds, or 1,4-dienes and functionalized dihydropyrans.
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Affiliation(s)
- Guo-Min Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Hua Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Bei Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Ji-Yu Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
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5
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Liu X, Liu B, Shi Z, Tan C, Fan R, Li Z, Tan J. Hf(OTf) 4-Catalyzed 1,6-Conjugate Addition of 2-Alkyl-azaarenes to para-Quinone Methides. J Org Chem 2021; 86:3615-3624. [PMID: 33523665 DOI: 10.1021/acs.joc.0c02982] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein we reported a Hf(OTf)4-catalyzed carbon-carbon bond formation reaction between 2-alkyl-azaarenes and para-quinone methides (p-QMs). This 1,6-conjugate addition protocol offered rapid access to a large array of triarylethane products in good yields. The catalyst loading could be reduced to 1 mol %. Studies pertinent to scale-up reaction and product derivatization were also presented.
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Affiliation(s)
- Xinyuan Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Binbin Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhan Shi
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Chen Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhi Li
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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6
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Xiong B, Xu S, Liu Y, Tang KW, Wong WY. Metal-Free, Acid/Phosphine-Induced Regioselective Thiolation of p-Quinone Methides with Sodium Aryl/Alkyl Sulfinates. J Org Chem 2021; 86:1516-1527. [PMID: 33406835 DOI: 10.1021/acs.joc.0c02390] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A simple and efficient method for the regioselective thiolation of p-quinone methides with sodium aryl/alkyl sulfinates has been established using an acid/phosphine-induced radical route under transition-metal-free conditions. A broad range of sodium aryl/alkyl sulfinates and p-quinone methides (p-QMs) are compatible for the reaction, giving the expected products with good to excellent yields. Control experiments were also performed to gain insights into the generation mechanism of thiyl radicals and hydrogen-atom transfer process. This protocol provides a safe and feasible way for the formation of carbon-sulfur bonds.
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Affiliation(s)
- Biquan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China.,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China
| | - Shipan Xu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China
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7
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Rui Li J, Chen C, Lin Hu Y. Novel and Efficient Knoevenagel Condensation over Mesoporous SBA‐15 Supported Acetate‐functionalized Basic Ionic Liquid Catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202004048] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jing Rui Li
- College of Materials and Chemical Engineering, Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University Yichang 443002, Hubei province P. R. China
| | - Chen Chen
- College of Environmental and Chemical Engineering Jiangsu University of Science and Technology Zhenjiang 212003 P. R. China
| | - Yu Lin Hu
- College of Materials and Chemical Engineering, Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University Yichang 443002, Hubei province P. R. China
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8
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Shirsath SR, Ghotekar GS, Bahadur V, Gonnade RG, Muthukrishnan M. Silver-Catalyzed Cascade Cyclization/1,6-Conjugate Addition of Homopropargyl Sulfonamides to p-Quinone Methides: An Approach to Diverse 3-Diarylmethine Substituted Dihydropyrroles. J Org Chem 2020; 85:15038-15050. [DOI: 10.1021/acs.joc.0c01922] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sachin R. Shirsath
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ganesh S. Ghotekar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vir Bahadur
- Centre for Materials Characterization, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - M. Muthukrishnan
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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9
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Wang JY, Hao WJ, Tu SJ, Jiang B. Recent developments in 1,6-addition reactions of para-quinone methides (p-QMs). Org Chem Front 2020. [DOI: 10.1039/d0qo00387e] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this review, we provide a comprehensive overview of recent progress in this rapidly growing field by summarizing the 1,6-conjugate addition and annulation reactions of p-QMs with consideration of their mechanisms and applications.
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Affiliation(s)
- Jia-Yin Wang
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
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10
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Xiong B, Wang G, Zhou C, Liu Y, Xu W, Xu WY, Yang CA, Tang KW. Base-Catalyzed Stereoselective 1,6-Conjugated Addition/Aromatization of P(O)-H Compounds with para
-Quinone Methides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900419] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biquan Xiong
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
| | - Gang Wang
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
| | - Congshan Zhou
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
| | - Weifeng Xu
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
| | - Wen-Yuan Xu
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
| | - Chang-An Yang
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; 414006 Yueyang P.R.China
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11
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Satbhaiya S, Khonde NS, Rathod J, Gonnade R, Kumar P. Tf2
NH catalyzed 1,6-conjugate addition of 2-hydroxy-p
-quinone methides with β
-Functionalized Ketones: Access to 2,3,4,9-Tetrahydro-1H
-xanthenones and 4H
-Chromene Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900370] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shruti Satbhaiya
- CSIR-National Chemical Laboratory; Division of Organic chemistry; Dr. Homi Bhabha Road Pune -411008 India
| | - Nilesh S. Khonde
- CSIR-National Chemical Laboratory; Division of Organic chemistry; Dr. Homi Bhabha Road Pune -411008 India
- Academy of Scientific and Innovative Research (AcSIR); Ghaziabad 201002 India
| | - Jayant Rathod
- CSIR-National Chemical Laboratory; Division of Organic chemistry; Dr. Homi Bhabha Road Pune -411008 India
- Academy of Scientific and Innovative Research (AcSIR); Ghaziabad 201002 India
| | - Rajesh Gonnade
- Academy of Scientific and Innovative Research (AcSIR); Ghaziabad 201002 India
- Physical and Material Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune -411008 India
| | - Pradeep Kumar
- CSIR-National Chemical Laboratory; Division of Organic chemistry; Dr. Homi Bhabha Road Pune -411008 India
- Academy of Scientific and Innovative Research (AcSIR); Ghaziabad 201002 India
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12
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Yang B, Yao W, Xia XF, Wang D. Mn-Catalyzed 1,6-conjugate addition/aromatization of para-quinone methides. Org Biomol Chem 2019; 16:4547-4557. [PMID: 29873652 DOI: 10.1039/c8ob01057a] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of ferrocenyl triazole ligands have been synthesized and characterized, which proved to be effective for the Mn-catalyzed 1,6-conjugate addition/aromatization of para-quinone methides with good to high yields under mild conditions. This protocol provided an efficient and practical route to the synthetically interesting functionalized quinones, methines and their analogues.
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Affiliation(s)
- Bobin Yang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
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13
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Shinohara R, Ogawa N, Kawashima H, Wada K, Saito S, Yamazaki T, Kobayashi Y. SN
2 Reaction of Diarylmethyl Anions at Secondary Alkyl and Cycloalkyl Carbons. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Riku Shinohara
- Department of Bioengineering; Tokyo Institute of Technology; Nagatsuta-cho 4259, Midori-ku Yokohama 226-8501 Japan
| | - Narihito Ogawa
- Department of Bioengineering; Tokyo Institute of Technology; Nagatsuta-cho 4259, Midori-ku Yokohama 226-8501 Japan
| | - Hidehisa Kawashima
- Department of Bioengineering; Tokyo Institute of Technology; Nagatsuta-cho 4259, Midori-ku Yokohama 226-8501 Japan
| | - Kyohei Wada
- Department of Bioengineering; Tokyo Institute of Technology; Nagatsuta-cho 4259, Midori-ku Yokohama 226-8501 Japan
| | - Shun Saito
- Department of Bioengineering; Tokyo Institute of Technology; Nagatsuta-cho 4259, Midori-ku Yokohama 226-8501 Japan
| | - Takashi Yamazaki
- Division of Applied Chemistry, Institute of Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Nakamachi Koganei 184-8588 Japan
| | - Yuichi Kobayashi
- Department of Bioengineering; Tokyo Institute of Technology; Nagatsuta-cho 4259, Midori-ku Yokohama 226-8501 Japan
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14
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Sharma BM, Rathod J, Gonnade RG, Kumar P. Harnessing Nucleophilicity of Allenol Ester with p-Quinone Methides via Gold Catalysis: Application to the Synthesis of Diarylmethine-Substituted Enones. J Org Chem 2018; 83:9353-9363. [DOI: 10.1021/acs.joc.8b01294] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brijesh M. Sharma
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Jayant Rathod
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Rajesh G. Gonnade
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Pradeep Kumar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
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15
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Rao B, Kinjo R. Boron-Based Catalysts for C−C Bond-Formation Reactions. Chem Asian J 2018; 13:1279-1292. [DOI: 10.1002/asia.201701796] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Bin Rao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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16
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Sharma BM, Shinde DR, Jain R, Begari E, Satbhaiya S, Gonnade RG, Kumar P. Unravelling the Nucleophilicity of Butenolides for 1,6-Conjugate Addition to p-Quinone Methides: A Direct Access to Diversely Substituted Butenolide-Derived Diarylmethanes. Org Lett 2018; 20:2787-2791. [DOI: 10.1021/acs.orglett.8b00745] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Brijesh M. Sharma
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Dinesh R. Shinde
- Central NMR Facility, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Ruchi Jain
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Eeshwaraiah Begari
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Shruti Satbhaiya
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Rajesh G. Gonnade
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Pradeep Kumar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
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17
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Zhao YN, Luo YC, Wang ZY, Xu PF. A new approach to access difluoroalkylated diarylmethanes via visible-light photocatalytic cross-coupling reactions. Chem Commun (Camb) 2018; 54:3993-3996. [DOI: 10.1039/c8cc01486h] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A para-quinone methide and difluoroalkylating reagent involved radical cross-coupling reaction was described, through photocatalytically generated diarylmethane radical intermediates.
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Affiliation(s)
- Yin-Na Zhao
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Chun Luo
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhu-Yin Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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18
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Mahesh S, Paluru DK, Ahmad F, Patil S, Kant G, Anand RV. Synthesis of Indolizine-Containing Diaryl- and Triarylmethanes through a Cu-Catalyzed Domino Cyclization of 2-(2-Enynyl)pyridines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700419] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Dilip K. Paluru
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Swati Patil
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Guddi Kant
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
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19
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Reichl KD, Smith MJ, Song MK, Johnson RP, Porco JA. Biomimetic Total Synthesis of (±)-Griffipavixanthone via a Cationic Cycloaddition-Cyclization Cascade. J Am Chem Soc 2017; 139:14053-14056. [PMID: 28942643 DOI: 10.1021/jacs.7b09265] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report the concise, biomimetic total synthesis of the dimeric, Diels-Alder natural product griffipavixanthone from a readily accessible prenylated xanthone monomer. The key step utilizes a novel intermolecular [4+2] cycloaddition-cyclization cascade between a vinyl p-quinone methide and an in situ generated isomeric diene promoted by either Lewis or Brønsted acids. Experimental and computational studies of the reaction pathway suggest that a stepwise, cationic Diels-Alder cycloaddition is operative.
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Affiliation(s)
- Kyle D Reichl
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Michael J Smith
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Min K Song
- Department of Chemistry and Materials Science Program, University of New Hampshire , Durham, New Hampshire 03824, United States
| | - Richard P Johnson
- Department of Chemistry and Materials Science Program, University of New Hampshire , Durham, New Hampshire 03824, United States
| | - John A Porco
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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20
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Environmentally Friendly ILSO 3
H-SnCl 5
@Ti-MCM-4-Mediated Hydroxyalkylation of Aromatic Hydrocarbons with Paraformaldehyde to Diarylmethanes. ChemistrySelect 2017. [DOI: 10.1002/slct.201701066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Mahesh S, Anand RV. Cu-Catalyzed Hydrophosphonylation of 2-(2-Enynyl)pyridines: Easy Access to Indolizine-Containing Diarylmethylphosphonates. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700146] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City 140306 S. A. S. Nagar, Manauli (PO) Punjab India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City 140306 S. A. S. Nagar, Manauli (PO) Punjab India
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22
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Zhang XZ, Deng YH, Gan KJ, Yan X, Yu KY, Wang FX, Fan CA. Tandem Spirocyclopropanation/Rearrangement Reaction of Vinyl p-Quinone Methides with Sulfonium Salts: Synthesis of Spirocyclopentenyl p-Dienones. Org Lett 2017; 19:1752-1755. [DOI: 10.1021/acs.orglett.7b00516] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiang-Zhi Zhang
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Yu-Hua Deng
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Kang-Ji Gan
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xu Yan
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Ke-Yin Yu
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Fang-Xin Wang
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Chun-An Fan
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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23
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Molleti N, Kang JY. Synthesis of Diaryl Diazaphosphonates via 1,6-Hydrophosphonylation of p-Quinone Methides with N-Heterocyclic Phosphine–Thioureas. Org Lett 2017; 19:958-961. [DOI: 10.1021/acs.orglett.7b00261] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nagaraju Molleti
- Department of Chemistry and
Biochemistry, University of Nevada Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - Jun Yong Kang
- Department of Chemistry and
Biochemistry, University of Nevada Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
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24
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Jadhav AS, Anand RV. 1,6-Conjugate addition of zinc alkyls to para-quinone methides in a continuous-flow microreactor. Org Biomol Chem 2017; 15:56-60. [DOI: 10.1039/c6ob02277d] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficient protocol has been developed for the 1,6-conjugate addition of zinc alkyls to p-quinone methides under continuous-flow using a microreactor.
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Affiliation(s)
- Abhijeet S. Jadhav
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
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25
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Mahesh S, Vijaya Anand R. B(C6F5)3 catalysed reduction of para-quinone methides and fuchsones to access unsymmetrical diaryl- and triarylmethanes: elaboration to beclobrate. Org Biomol Chem 2017; 15:8393-8401. [DOI: 10.1039/c7ob02007d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An effective method for the synthesis of diaryl- and triarylmethane derivatives through a Lewis acid catalyzed reduction of para-quinone methides and fuchsones, respectively, using the Hantzsch ester as a hydride surrogate is described.
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Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
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