1
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Ahmad T, Khan S, Ullah N. Recent Advances in the Catalytic Asymmetric Friedel-Crafts Reactions of Indoles. ACS OMEGA 2022; 7:35446-35485. [PMID: 36249392 PMCID: PMC9558610 DOI: 10.1021/acsomega.2c05022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Functionalized chiral indole derivatives are privileged and versatile organic frameworks encountered in numerous pharmaceutically active agents and biologically active natural products. The catalytic asymmetric Friedel-Crafts reaction of indoles, catalyzed by chiral metal complexes or chiral organocatalysts, is one of the most powerful and atom-economical approaches to access optically active indole derivatives. Consequently, a wide range of electrophilic partners including α,β-unsaturated ketones, esters, amides, imines, β,γ-unsaturated α-keto- and α-ketiminoesters, ketimines, nitroalkenes, and many others have been successfully employed to achieve a plethora of functionalized chiral indole moieties. In particular, strategies for C-H functionalization in the phenyl of indoles require incorporation of a directing or blocking group in the phenyl or azole ring of indole. The discovery of chiral catalysts which can control enantiodiscrimination has gained a great deal of attention in recent years. This review will provide an updated account on the application of the asymmetric Friedel-Crafts reaction of indoles in the synthesis of diverse chiral indole derivatives, covering the timeframe from 2011 to today.
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Affiliation(s)
- Tauqir Ahmad
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
| | - Sardaraz Khan
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
| | - Nisar Ullah
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
- The
Center for Refining & Advanced Chemicals, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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2
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Qu H, Chen Y, Ceng X, Tang P, Wang H, Chen F. Enantioselective Synthesis of Chiral 3‐Alkynyl‐3‐hydroxyindolin‐2‐ones by Zn/bis(sulfonamide)–diamine Catalyzed Asymmetric Addition of Alkynes to Isatins. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hongmin Qu
- Sichuan University West China School of Pharmacy CHINA
| | - Yu Chen
- Sichuan University West China School of Pharmacy CHINA
| | | | - Pei Tang
- Sichuan University West China School of Pharmacy CHINA
| | - Huijing Wang
- Sichuan University West China School of Pharmacy CHINA
| | - Fener Chen
- Fudan University Department of Chemistry Handan Road 220 200433 Shanghai CHINA
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3
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Rajeev N, Sharath Kumar KS, Bommegowda YK, Rangappa KS, Sadashiva MP. Catalyst free sequential one‐pot reaction for the synthesis of 3‐indole propanoates/propanoic acid/propanamides as antituberculosis agents. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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4
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Mondal S, Malakar S. Synthesis of sulfonamide and their synthetic and therapeutic applications: Recent advances. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131662] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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5
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Tarasenko EA, Shestakov IV, Rybakov VB, Beletskaya IP. Enantioselective Copper(II)/Box‐Catalyzed Synthesis of Chiral
β
3
‐Tryptophan Derivatives. ChemCatChem 2019. [DOI: 10.1002/cctc.201900575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elena A. Tarasenko
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
| | - Ivan V. Shestakov
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
| | - Victor B. Rybakov
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
| | - Irina P. Beletskaya
- Department of ChemistryM. V. Lomonosov Moscow State University Leninskie Gory, GSP-1 Moscow 119991 Russian Federation
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6
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Staleva P, Hernández JG, Bolm C. Mechanochemical Copper-Catalyzed Asymmetric Michael-Type Friedel-Crafts Alkylation of Indoles with Arylidene Malonates. Chemistry 2019; 25:9202-9205. [PMID: 31106927 DOI: 10.1002/chem.201901826] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/18/2019] [Indexed: 12/12/2022]
Abstract
A mechanochemical version of the asymmetric Michael-type Friedel-Crafts alkylation of indoles with arylidene malonates was developed. The reaction proceeds under ambient atmosphere using a chiral bis(oxazoline)copper catalyst in a mixer mill. Under these reaction conditions nineteen 3-substituted indole derivatives were synthesized in good to excellent yields (up to 98 %), and with good enantioselectivities (up to 91:9 e.r.) after short milling times.
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Affiliation(s)
- Plamena Staleva
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - José G Hernández
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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7
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Heravi MM, Zadsirjan V, Masoumi B, Heydari M. Organometal-catalyzed asymmetric Friedel-Crafts reactions. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.10.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Critical view on the recent enantioselective synthesis of alcohols, amines and related molecules having tertiary benzylic stereocenter. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Guan Y, Attard JW, Visco MD, Fisher TJ, Mattson AE. Enantioselective Catalyst Systems from Copper(II) Triflate and BINOL-Silanediol. Chemistry 2018; 24:7123-7127. [PMID: 29575279 DOI: 10.1002/chem.201801304] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/24/2022]
Abstract
Silanediol and copper catalysis are merged, for the first time, to create an enhanced Lewis acid catalyst system for enantioselective heterocycle functionalization. The promise of this silanediol and copper catalyst combination is demonstrated in the enantioselective addition of indoles to alkylidene malonates to give rise to the desirable adducts in excellent yield and high enantiomeric excess. From these studies, 1,1'-bi-2-naphthol (BINOL)-based silanediols emerge as one-of-a-kind cocatalysts. Their potential role in the reaction pathway is also discussed.
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Affiliation(s)
- Yong Guan
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Jonathan W Attard
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | | | - Thomas J Fisher
- The Goodyear Tire and Rubber Company, 200 Innovation Way, Akron, OH, USA
| | - Anita E Mattson
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
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10
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Anokhin MV, Feofanov MN, Averin AD, Beletskaya IP. The Asymmetric Friedel-Crafts Reaction of Indoles with Arylidenemalonates Catalyzed by MgI2
/PyBox Complexes. ChemistrySelect 2018. [DOI: 10.1002/slct.201703028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maksim V. Anokhin
- Department of Chemistry; Lomonosov Moscow State University; Leninskie Gory 1-3 119991 Moscow Russia
| | - Mikhail N. Feofanov
- Department of Chemistry; Lomonosov Moscow State University; Leninskie Gory 1-3 119991 Moscow Russia
| | - Alexei D. Averin
- Department of Chemistry; Lomonosov Moscow State University; Leninskie Gory 1-3 119991 Moscow Russia
| | - Irina P. Beletskaya
- Department of Chemistry; Lomonosov Moscow State University; Leninskie Gory 1-3 119991 Moscow Russia
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11
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Desyatkin VG, Anokhin MV, Rodionov VO, Beletskaya IP. Polystyrene-supported cu(II)-R-Box as recyclable catalyst in asymmetric Friedel–Crafts reaction. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428016120010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Nagatani K, Minami A, Tezuka H, Hoshino Y, Nakada M. Enantioselective Mukaiyama–Michael Reaction of Cyclic α-Alkylidene β-Keto Phosphine Oxide and Phosphonate and Asymmetric Synthesis of (R)-Homosarkomycin. Org Lett 2017; 19:810-813. [DOI: 10.1021/acs.orglett.6b03798] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kotaro Nagatani
- Department of Chemistry and
Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Atsushi Minami
- Department of Chemistry and
Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Haruka Tezuka
- Department of Chemistry and
Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Yunosuke Hoshino
- Department of Chemistry and
Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Masahisa Nakada
- Department of Chemistry and
Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
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13
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Li X, You C, Yang Y, Wang F, Li S, Lv H, Zhang X. Rhodium-catalyzed enantioselective hydrogenation of α-amino acrylonitriles: an efficient approach to synthesizing chiral α-amino nitriles. Chem Commun (Camb) 2017; 53:1313-1316. [DOI: 10.1039/c6cc09662j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient asymmetric hydrogenation of α-amino acrylonitriles has been achieved, affording chiral α-amino nitriles in excellent yields and enantioselectivities regardless of the cis–trans configuration of α-amino acrylonitriles.
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Affiliation(s)
- Xiuxiu Li
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Cai You
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Yusheng Yang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Fangyuan Wang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Shuailong Li
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Hui Lv
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
- Department of Chemistry
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14
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Chen JB, Jia YX. Recent progress in transition-metal-catalyzed enantioselective indole functionalizations. Org Biomol Chem 2017; 15:3550-3567. [DOI: 10.1039/c7ob00413c] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Recent progress on the transition-metal-catalyzed enantioselective functionalization reaction of indoles is reviewed, which is mainly focused on asymmetric indole alkylations, arylations, cycloaddition reactions, and other reactions.
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Affiliation(s)
- Jing-Biao Chen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Yi-Xia Jia
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
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15
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Huang K, Ma Q, Shen X, Gong L, Meggers E. Metal-Templated Asymmetric Catalysis: (Z)-1-Bromo-1-Nitrostyrenes as Versatile Substrates for Friedel-Crafts Alkylation of Indoles. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600288] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kaifang Huang
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China) address
| | - Qiao Ma
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China) address
| | - Xiang Shen
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China) address
| | - Lei Gong
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China) address
| | - Eric Meggers
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China) address
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
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16
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17
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Mizoi K, Mashima Y, Kawashima Y, Takahashi M, Mimori S, Hosokawa M, Murakami Y, Hamana H. A new methodology for functionalization at the 3-position of indoles by a combination of boron Lewis acid with nitriles. Chem Pharm Bull (Tokyo) 2016; 63:538-45. [PMID: 26133069 DOI: 10.1248/cpb.c15-00157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We discovered that a reagent comprising a combination of PhBCl2 and nitriles was useful for syntheses of both 3-acylindoles and 1-(1H-indol-3-yl)alkylamine from indoles. The reaction proceeded selectively at the 3-position of indoles providing 3-acylindoles in moderate to high yields on treatment with the above reagent. Furthermore, the reaction provided the corresponding amine products in moderate to high yields after the intermediate imine was reduced by NaBH3CN. These reactions proceeded under mild conditions and are applicable to the formation of indoles functionalized at the 3-position.
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Affiliation(s)
- Kenta Mizoi
- Faculty of Pharmacy, Chiba Institute of Science
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18
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Ma HL, Xie L, Zhang Z, Li JQ, Qin ZH, Fu B. Enantioselective Copper(II)-Catalyzed Conjugate Addition of Indoles to β-Substituted Unsaturated Acyl Phosphonates. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500923] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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20
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Oyama H, Nakada M. Highly enantioselective catalytic Friedel–Crafts reactions of cyclic α-alkylidene β-oxo imides. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.01.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Srivastava A, Biswas S, Singh S, Mobin SM, Samanta S. Organocatalysed Michael addition on arylmethylidenemalonates involving 4-(2-nitrophenyl)acetoacetate: diversity-oriented access to 8,9-dihydropyrido[1,2-a]indol-6(7H)-one and salicylate scaffolds. RSC Adv 2015. [DOI: 10.1039/c5ra01430a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
A diversity-oriented synthesis of 8,9-dihydropyrido[1,2-a]indol-6(7H)-one and salicylate scaffolds was achieved in high yields with excellent diastereoselectivities (≤96 : 4 dr) via an organocatalytic reaction of alkylidene malonates with 4-(2-nitrophenyl) acetoacetate.
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22
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Oelerich J, Roelfes G. Alkylidene malonates and α,β-unsaturated α′-hydroxyketones as practical substrates for vinylogous Friedel–Crafts alkylations in water catalysed by scandium(iii) triflate/SDS. Org Biomol Chem 2015; 13:2793-9. [DOI: 10.1039/c4ob02487g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkylidene malonates and α,β-unsaturated α′-hydroxyketones are excellent substrates for the Sc(OTf)3/SDS catalysed Friedel–Crafts alkylation in water.
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Affiliation(s)
- Jens Oelerich
- Stratingh Institute for Chemistry
- University of Groningen
- 9747 AG Groningen
- The Netherlands
| | - Gerard Roelfes
- Stratingh Institute for Chemistry
- University of Groningen
- 9747 AG Groningen
- The Netherlands
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23
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The Future of Catalysis by Chiral Lewis Acids. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/3418_2015_141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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More GV, Bhanage BM. Synthesis of a chiral fluorescence active probe and its application as an efficient catalyst in the asymmetric Friedel–Crafts alkylation of indole derivatives with nitroalkenes. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01456a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A green protocol for the asymmetric Friedel–Crafts alkylation of indole derivatives with nitrostyrene using chiral Zn(ii) catalyst has been developed.
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Affiliation(s)
- Ganesh Vasant More
- Institute of Chemical Technology
- Department of Chemistry
- Mumbai-400019
- India
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25
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Wang R, Liu J, Xu J. Organocatalytic Enantioselective Sulfur-Michael Addition of Thioacetic Acid to Arylmethylidenemalonates. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400664] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Badillo JJ, Ribeiro CJA, Olmstead MM, Franz AK. Titanium(IV)-catalyzed stereoselective synthesis of spirooxindole-1-pyrrolines. Org Lett 2014; 16:6270-3. [PMID: 25474118 PMCID: PMC4275133 DOI: 10.1021/ol5028128] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
A stereoselective
cyclization between alkylidene oxindoles and
5-methoxyoxazoles has been developed using catalytic titanium(IV)
chloride (as low as 5 mol %) to afford spiro[3,3′-oxindole-1-pyrrolines]
in excellent yield (up to 99%) and diastereoselectivity (up to 99:1).
Using a chiral scandium(III)–indapybox/BArF complex affords
enantioenriched spirooxindole-1-pyrrolines where a ligand-induced
reversal of diastereoselectivity is observed. This methodology is
further demonstrated for the synthesis of pyrrolines from malonate
alkylidene and coumarin derivatives.
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Affiliation(s)
- Joseph J Badillo
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
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27
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Johnson MG, Gribble MW, Houze JB, Paras NA. Convenient route to secondary sulfinates: application to the stereospecific synthesis of α-C-chiral sulfonamides. Org Lett 2014; 16:6248-51. [PMID: 25415837 DOI: 10.1021/ol503208z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A convenient synthesis of α-chiral sulfinates from readily available precursors has been accomplished via the corresponding heterocyclic thioethers and sulfones. Treatment of the sulfinates with hydroxylamine sulfonate in aqueous solution provides α-C-chiral primary sulfonamides in good yield (14 examples) with retention of stereochemical purity.
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Affiliation(s)
- Michael G Johnson
- Department of Therapeutic Discovery, Amgen, Inc., 1120 Veterans Boulevard, South San Francisco, California 94080, United States
| | - Michael W Gribble
- Department of Therapeutic Discovery, Amgen, Inc., 1120 Veterans Boulevard, South San Francisco, California 94080, United States
| | - Jonathan B Houze
- Department of Therapeutic Discovery, Amgen, Inc., 1120 Veterans Boulevard, South San Francisco, California 94080, United States
| | - Nick A Paras
- Department of Therapeutic Discovery, Amgen, Inc., 1120 Veterans Boulevard, South San Francisco, California 94080, United States
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28
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Li WJ. Synthesis of chiral benzene-based tetraoxazolines and their application in asymmetric Friedel–Crafts alkylation of indole derivatives with nitroalkenes. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2014.04.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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29
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Yan Q, Liu M, Kong D, Zi G, Hou G. Highly efficient iridium-catalyzed asymmetric hydrogenation of β-acylamino nitroolefins. Chem Commun (Camb) 2014; 50:12870-2. [DOI: 10.1039/c4cc05815a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A highly Ir-catalyzed enantioselective hydrogenation of β-acylamino nitroolefins is first reported, which provides straightforward access to chiral β-amino nitroalkanes in excellent enantioselectivities (up to >99.9% ee).
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Affiliation(s)
- Qiaozhi Yan
- College of Chemistry
- Beijing Normal University
- Beijing 100875, China
| | - Man Liu
- College of Chemistry
- Beijing Normal University
- Beijing 100875, China
| | - Duanyang Kong
- College of Chemistry
- Beijing Normal University
- Beijing 100875, China
| | - Guofu Zi
- College of Chemistry
- Beijing Normal University
- Beijing 100875, China
| | - Guohua Hou
- College of Chemistry
- Beijing Normal University
- Beijing 100875, China
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30
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Wu J, Wang D, Wang H, Wu F, Li X, Wan B. Facile synthesis of 5H-benzo[b]carbazol-6-yl ketones via sequential reaction of Cu-catalyzed Friedel–Crafts alkylation, iodine-promoted cyclization, nucleophilic substitution and aromatization. Org Biomol Chem 2014; 12:6806-11. [DOI: 10.1039/c4ob00815d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient method to access 5H-benzo[b]carbazol-6-yl ketones from indoles and 2-(2-(alkynyl)benzylidene)malonates has been developed.
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Affiliation(s)
- Jing Wu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | - Dongping Wang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | - Haolong Wang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | - Fan Wu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | - Xincheng Li
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | - Boshun Wan
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
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Zhou M, Dong D, Zhu B, Geng H, Wang Y, Zhang X. Rhodium-Catalyzed Enantioselective Hydrogenation of β-Acylamino Nitroolefins: A New Approach to Chiral β-Amino Nitroalkanes. Org Lett 2013; 15:5524-7. [DOI: 10.1021/ol4026843] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Dejun Dong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Baolin Zhu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Huiling Geng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Yan Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
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