151
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Trost BM, Hung CIJ, Gnanamani E. Tuning the Reactivity of Ketones through Unsaturation: Construction of Cyclic and Acyclic Quaternary Stereocenters via Zn-ProPhenol Catalyzed Mannich Reactions. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04685] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Chao-I Joey Hung
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Elumalai Gnanamani
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
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152
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Trost BM, Tracy JS. Vanadium-Catalyzed Synthesis of Geometrically Defined Acyclic Tri- and Tetrasubstituted Olefins from Propargyl Alcohols. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04567] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
| | - Jacob S. Tracy
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
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153
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Kohari Y, Kon K, Murata M. Tripeptide-Catalyzed Asymmetric Aldol Reaction of Trifluoromethylated Aromatic Ketones with Acetone. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)77] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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154
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Jiang YY, Li G, Yang D, Zhang Z, Zhu L, Fan X, Bi S. Mechanism of Cu-Catalyzed Aerobic C(CO)–CH3 Bond Cleavage: A Combined Computational and Experimental Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03993] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Guoqing Li
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Daoshan Yang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People’s Republic of China
| | - Zhaoshun Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Ling Zhu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Xia Fan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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155
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Paul J, Xavier T, Presset M, Le Gall E, Léonel E, Pichon C, Condon S. Cobalt-Zinc-Diimine Multicatalysis: Enhanced syn
Diastereoselectivity in the Reductive Multicomponent Coupling of Aryl Bromides, Acrylates and Aldehydes. ChemistrySelect 2018. [DOI: 10.1002/slct.201803710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jérôme Paul
- Institut de Chimie et des Matériaux Paris-Est (UMR 7182); CNRS; UPEC; Université Paris-Est; Equipe Electrochimie et Synthèse Organique; 2 rue Henri Dunant F-94320 Thiais France
| | - Tania Xavier
- Institut de Chimie et des Matériaux Paris-Est (UMR 7182); CNRS; UPEC; Université Paris-Est; Equipe Electrochimie et Synthèse Organique; 2 rue Henri Dunant F-94320 Thiais France
| | - Marc Presset
- Institut de Chimie et des Matériaux Paris-Est (UMR 7182); CNRS; UPEC; Université Paris-Est; Equipe Electrochimie et Synthèse Organique; 2 rue Henri Dunant F-94320 Thiais France
| | - Erwan Le Gall
- Institut de Chimie et des Matériaux Paris-Est (UMR 7182); CNRS; UPEC; Université Paris-Est; Equipe Electrochimie et Synthèse Organique; 2 rue Henri Dunant F-94320 Thiais France
| | - Eric Léonel
- Institut de Chimie et des Matériaux Paris-Est (UMR 7182); CNRS; UPEC; Université Paris-Est; Equipe Electrochimie et Synthèse Organique; 2 rue Henri Dunant F-94320 Thiais France
| | - Christophe Pichon
- Institut de Chimie et des Matériaux Paris-Est (UMR 7182); CNRS; UPEC; Université Paris-Est; Equipe Electrochimie et Synthèse Organique; 2 rue Henri Dunant F-94320 Thiais France
| | - Sylvie Condon
- Institut de Chimie et des Matériaux Paris-Est (UMR 7182); CNRS; UPEC; Université Paris-Est; Equipe Electrochimie et Synthèse Organique; 2 rue Henri Dunant F-94320 Thiais France
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156
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Zhong YL, Cleator E, Liu Z, Yin J, Morris WJ, Alam M, Bishop B, Dumas AM, Edwards J, Goodyear A, Mullens P, Song ZJ, Shevlin M, Thaisrivongs DA, Li H, Sherer EC, Cohen RD, Yin J, Tan L, Yasuda N, Limanto J, Davies A, Campos KR. Highly Diastereoselective Synthesis of a HCV NS5B Nucleoside Polymerase Inhibitor. J Org Chem 2018; 84:4780-4795. [PMID: 30475616 DOI: 10.1021/acs.joc.8b02500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An asymmetric synthesis of HCV NS5B nucleoside polymerase inhibitor (1) is described. This novel route features several remarkably diastereoselective and high-yielding transformations, including construction of the all-carbon quaternary stereogenic center at C-2 via a thermodynamic aldol reaction. A subsequent glycosylation reaction with activated uracil via C-1 phosphate and installation of the cyclic phosphate group using an achiral phosphorus(III) reagent followed by oxidation provides 1.
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Affiliation(s)
- Yong-Li Zhong
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Ed Cleator
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Zhijian Liu
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Jianguo Yin
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - William J Morris
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Mahbub Alam
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Brian Bishop
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Aaron M Dumas
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - John Edwards
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Adrian Goodyear
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Peter Mullens
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Zhiguo Jake Song
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Michael Shevlin
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - David A Thaisrivongs
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Hongming Li
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Edward C Sherer
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Ryan D Cohen
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Jingjun Yin
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Lushi Tan
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Nobuyoshi Yasuda
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - John Limanto
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Antony Davies
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
| | - Kevin R Campos
- Process Research and Development , Merck & Co., Inc. , P.O. Box 2000, Rahway , New Jersey 07065 , United States
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157
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Wang J, Deng ZX, Wang CM, Xia PJ, Xiao JA, Xiang HY, Chen XQ, Yang H. Unraveling and Manipulating the Stereospecific Retro-Aldol Reaction in the Organocatalytic Asymmetric Aldol Reaction of Isatin and Cyclohexanone. Org Lett 2018; 20:7535-7538. [PMID: 30411899 DOI: 10.1021/acs.orglett.8b03292] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An l-pyroglutamic acid-derived bifunctional organocatalyst was designed and applied in an organocatalytic asymmetric direct aldol reaction between isatins and cyclohexanone, in which an erosion of enantiomeric excess of aldol adduct was unexpectedly observed. Through closely monitoring the reaction and performing extensive control experiments, it was determined that the erosion of ee was attributed to a rare stereospecific retro-aldol process. Moreover, effective manipulation of the retro-aldol process by tuning the use of starting materials was ultimately accomplished, leading to evidently upgraded enantioselectivity and functional group tolerance. This study demonstrates the impact of the hidden reaction pathway on the enantioselectivity in asymmetric transformation.
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Affiliation(s)
- Jing Wang
- College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P. R. China
| | - Zhi-Xiong Deng
- College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P. R. China
| | - Chao-Ming Wang
- College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P. R. China
| | - Peng-Ju Xia
- College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P. R. China
| | - Jun-An Xiao
- College of Chemistry and Materials Science , Guangxi Teachers Education University , Nanning 530001 , Guangxi , P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety , Central South University , Changsha 410083 , P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety , Central South University , Changsha 410083 , P. R. China
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158
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Davies T, Taylor SH, Graham AE. Nanoporous Aluminosilicate-Catalyzed Telescoped Acetalization-Direct Aldol Reactions of Acetals with 1,3-Dicarbonyl Compounds. ACS OMEGA 2018; 3:15482-15491. [PMID: 31458204 PMCID: PMC6644119 DOI: 10.1021/acsomega.8b02047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 11/01/2018] [Indexed: 05/11/2023]
Abstract
Nanoporous aluminosilicate materials, synthesized by an evaporation-induced self-assembly process, catalyze the direct aldol reaction of acyclic acetals with a range of 1,3-dicarbonyl compounds to produce the corresponding aldol addition products in high yield, rather than the expected Knoevenagel elimination products. By carrying out the reaction in the presence of either dimethoxy propane or the corresponding orthoester, it is possible to capitalize on the ability of these aluminosilicate materials to catalyze the corresponding acetalization reaction leading to the development of novel telescoped, acetalization-direct aldol addition reaction protocols.
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Affiliation(s)
- Thomas
Edward Davies
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K.
| | - Stuart Hamilton Taylor
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K.
| | - Andrew Edward Graham
- School
of Applied Sciences, University of South
Wales, Pontypridd CF37 4AT, U.K.
- E-mail:
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159
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Arrastia I, Arrieta A, Cossío FP. Application of 1,3-Dipolar Reactions between Azomethine Ylides and Alkenes to the Synthesis of Catalysts and Biologically Active Compounds. European J Org Chem 2018; 2018:5889-5904. [PMID: 30555273 PMCID: PMC6283252 DOI: 10.1002/ejoc.201800911] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Indexed: 12/19/2022]
Abstract
The (3+2) cycloaddition between azomethine ylides and alkenes is an efficient, convergent and stereocontrolled method for the synthesis of unnatural pyrrolidine and proline scaffolds. In this review, the application of this reaction to the synthesis of enantiopure organometallic ligands for asymmetric catalysis is presented first. These new EhuPhos ligands can participate in a second generation of 1,3-dipolar reactions that generate an offspring of unnatural proline derivatives that behave as efficient organocatalysts. These densely substituted unnatural l-proline derivatives exhibit distinct features, different to those described for natural l-proline and its derivatives. Finally, several examples of biologically active proline derivatives obtained by means of (3+2) cycloadditions involving azomethine ylides are presented. These applications show the character of privileged structures of these polysubstituted pyrrolidine rings.
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Affiliation(s)
- Iosune Arrastia
- Donostia International Physics Center (DIPC)Manuel Lardizabal Ibilbidea 420018San Sebastian/DonostiaSpain
| | - Ana Arrieta
- Department of Organic Chemistry I and Centro de Innovación en Química Avanzada (ORFEO‐CINQA)Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Manuel Lardizabal Ibilbidea 320018San Sebastian/DonostiaSpain
| | - Fernando P. Cossío
- Donostia International Physics Center (DIPC)Manuel Lardizabal Ibilbidea 420018San Sebastian/DonostiaSpain
- Department of Organic Chemistry I and Centro de Innovación en Química Avanzada (ORFEO‐CINQA)Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Manuel Lardizabal Ibilbidea 320018San Sebastian/DonostiaSpain
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160
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Ruíz-Pérez KM, Quiroz-García B, Hernández-Rodríguez M. Prolinamides of Aminouracils, Organocatalyst Modifiable by Complementary Modules. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800886] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karen M. Ruíz-Pérez
- Instituto de Química; Universidad Nacional Autónoma de México. Circuito Exterior; Ciudad Universitaria, Del. Coyoacán, C.P. 04510 México Cd. Mx. México
| | - Beatriz Quiroz-García
- Instituto de Química; Universidad Nacional Autónoma de México. Circuito Exterior; Ciudad Universitaria, Del. Coyoacán, C.P. 04510 México Cd. Mx. México
| | - Marcos Hernández-Rodríguez
- Instituto de Química; Universidad Nacional Autónoma de México. Circuito Exterior; Ciudad Universitaria, Del. Coyoacán, C.P. 04510 México Cd. Mx. México
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161
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Liu YL, Lin XT. Recent Advances in Catalytic Asymmetric Synthesis of Tertiary Alcohols via
Nucleophilic Addition to Ketones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801023] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yun-Lin Liu
- School of Chemistry and Chemical Engineering; Guangzhou University; Guangzhou 510006 People's Republic of China
| | - Xiao-Tong Lin
- School of Chemistry and Chemical Engineering; Guangzhou University; Guangzhou 510006 People's Republic of China
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162
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Dai QS, Zhang X, Yang KC, Li MH, Yang J, Li QZ, Feng X, Han B, Li JL. Chiral Amine-Catalyzed Stereoselective [4+2] Annulations of Alkenyl Thiazolones and Aliphatic Aldehydes via
a Step-Wise Mechanism. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800806] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qing-Song Dai
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
| | - Xiang Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
| | - Kai-Chuan Yang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
| | - Mao-Hua Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
| | - Jie Yang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
| | - Qing-Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
| | - Xin Feng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 PR China
| | - Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 PR China
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163
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Ahmetlli A, Spiliopoulou N, Magi-Oikonomopoulou A, Gerokonstantis DT, Moutevelis-Minakakis P, Kokotos CG. Proline dipeptides containing fluorine moieties as oganocatalysts for the asymmetric aldol reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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164
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Sharifa Zaithun B, Emilia A, Mohamed Ibrahim Mohamed T, Karen Anne C, Mohd Basyaruddin AR. Histidine-based copper tetrapeptides as enantioselective catalysts for aldol reactions. RSC Adv 2018; 8:34004-34011. [PMID: 35548802 PMCID: PMC9086720 DOI: 10.1039/c8ra06814c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 09/18/2018] [Indexed: 12/18/2022] Open
Abstract
Copper(ii)-peptides are widely used as industrial catalysts such as in the aerobic oxidation of organic molecules, formation of new C–H bonds and in the azide–alkyne cycloaddition reaction. The length of peptides and the effect of adding copper metal into peptides were questioned in their field of applications. Five novel histidine-based tetrapeptides with the sequences HAAD (P1), HAFD (P2), HAVD (P3), AGHD (P4) and PGHD (P5) were synthesized using the solid phase peptide scheme and analysed with high performance liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS) with percentage purities as high as 99.5%. All the peptides were positively charged (+1) and the molecular weight calculated from m/z values of MS results coincided with the theoretical molecular weight of the peptides. Copper(ii)-peptides derived from these peptides and copper(ii) acetate monohydrate (CuP1–CuP5) in a 1 : 2 ratio was synthesised, purified and characterised by ultraviolet-visible spectroscopy (UV-Vis), ultraviolet-fluorescence spectroscopy (fluorescence) and fourier transform infrared spectroscopy (FTIR), circular dichroism spectroscopy (CD) and optical rotation polarimetry. It provided the necessary information on the secondary structure and the successful binding of copper(ii) to the specific amino acids, hence leading to the putative geometry of copper(ii)-peptides and the difference in the chirality of amino acids, peptides and copper(ii)-peptides. The catalytic activities of the synthesised complexes were evaluated. CuP1 & CuP3 catalysed both the asymmetric aldol reactions with high enantioselectivity of p-nitrobenzaldehyde with cyclohexanone (% ee = 87.3 & 80.3, respectively) and of p-anisaldehyde with cyclohexanone (% ee = 95.5 & 90.9, respectively). P5 with the sequence H2N-PGHD-CONH.![]()
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Affiliation(s)
- Begum Sharifa Zaithun
- Integrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | - AbdulMalek Emilia
- Integrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia.,Department of Chemistry, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | | | - Crouse Karen Anne
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | - Abdul Rahman Mohd Basyaruddin
- Integrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia.,Department of Chemistry, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
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165
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Ma H, Engel S, Enugala TR, Al-Smadi D, Gautier C, Widersten M. New Stereoselective Biocatalysts for Carboligation and Retro-Aldol Cleavage Reactions Derived from d-Fructose 6-Phosphate Aldolase. Biochemistry 2018; 57:5877-5885. [DOI: 10.1021/acs.biochem.8b00814] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huan Ma
- Department of Chemistry-BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
| | - Sarah Engel
- Department of Chemistry-BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
| | - Thilak Reddy Enugala
- Department of Chemistry-BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
| | - Derar Al-Smadi
- Department of Chemistry-BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
| | - Candice Gautier
- Department of Chemistry-BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
| | - Mikael Widersten
- Department of Chemistry-BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
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166
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Lee HJ, Arumugam N, Almansour AI, Kumar RS, Maruoka K. Practical synthesis of four different pseudoenantiomeric organocatalysts with both cis- and trans-substituted 1,2-cis-cyclohexanediamine structures from a common intermediate. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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167
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Highly Catalytic Activity of Ba/γ-Ti–Al2O3 Catalyst for Aldol Condensation of Methyl Acetate with Formaldehyde. Catal Letters 2018. [DOI: 10.1007/s10562-018-2535-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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168
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Bhati M, Kumari K, Easwar S. Probing the Synergistic Catalytic Model: A Rationally Designed Urea-Tagged Proline Catalyst for the Direct Asymmetric Aldol Reaction. J Org Chem 2018; 83:8225-8232. [PMID: 29847121 DOI: 10.1021/acs.joc.8b00962] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A urea tag was incorporated at the C-4 position of proline, cis to its COOH group, in order to explore the prospect of a synergistic effect between the two functional groups in the transition state of the enamine route to the asymmetric aldol reaction. The catalyst proved to be an excellent performer, delivering aldols in high yields and with excellent enantio- and diastereoselectivities using just 2 mol % loading in the presence of water; it also exhibited good levels of recyclability under aqueous conditions. The favorable results reveal the interesting possibility of an intramolecular host-guest interaction between the urea and the amino acid moieties, exerting a beneficial effect on catalysis. The concept could certainly offer a new direction toward more efficient catalyst design.
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Affiliation(s)
- Meeta Bhati
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
| | - Kiran Kumari
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
| | - Srinivasan Easwar
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
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169
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Zou H, Li L, Zhang T, Shi M, Zhang N, Huang J, Xian M. Biosynthesis and biotechnological application of non-canonical amino acids: Complex and unclear. Biotechnol Adv 2018; 36:1917-1927. [PMID: 30063950 DOI: 10.1016/j.biotechadv.2018.07.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/22/2018] [Accepted: 07/27/2018] [Indexed: 01/05/2023]
Abstract
Compared with the better-studied canonical amino acids, the distribution, metabolism and functions of natural non-canonical amino acids remain relatively obscure. Natural non-canonical amino acids have been mainly discovered in plants as secondary metabolites that perform diversified physiological functions. Due to their specific characteristics, a broader range of natural and artificial non-canonical amino acids have recently been applied in the development of functional materials and pharmaceutical products. With the rapid development of advanced methods in biotechnology, non-canonical amino acids can be incorporated into peptides, proteins and enzymes to improve the function and performance relative to their natural counterparts. Therefore, biotechnological application of non-canonical amino acids in artificial bio-macromolecules follows the central goal of synthetic biology to: create novel life forms and functions. However, many of the non-canonical amino acids are synthesized via chemo- or semi-synthetic methods, and few non-canonical amino acids can be synthesized using natural in vivo pathways. Therefore, further research is needed to clarify the metabolic pathways and key enzymes of the non-canonical amino acids. This will lead to the discovery of more candidate non-canonical amino acids, especially for those that are derived from microorganisms and are naturally bio-compatible with chassis strains for in vivo biosynthesis. In this review, we summarize representative natural and artificial non-canonical amino acids, their known information regarding associated metabolic pathways, their characteristics and their practical applications. Moreover, this review summarizes current barriers in developing in vivo pathways for the synthesis of non-canonical amino acids, as well as other considerations, future trends and potential applications of non-canonical amino acids in advanced biotechnology.
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Affiliation(s)
- Huibin Zou
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
| | - Lei Li
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Tongtong Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Mengxun Shi
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Nan Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jingling Huang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Mo Xian
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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170
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Wang S, Rodríguez-Escrich C, Fan X, Pericàs MA. A site isolation-enabled organocatalytic approach to enantiopure γ-amino alcohol drugs. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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171
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Three Polyhydroxyl-Bridged Defective Dicubane Tetranuclear MnIII Complexes: Synthesis, Crystal Structures, and Spectroscopic Properties. CRYSTALS 2018. [DOI: 10.3390/cryst8070272] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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172
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Direct enolization chemistry of 7-azaindoline amides: A case study of bis(tetrahydrophosphole)-type ligands. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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173
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Spears RJ, Brabham RL, Budhadev D, Keenan T, McKenna S, Walton J, Brannigan JA, Brzozowski AM, Wilkinson AJ, Plevin M, Fascione MA. Site-selective C-C modification of proteins at neutral pH using organocatalyst-mediated cross aldol ligations. Chem Sci 2018; 9:5585-5593. [PMID: 30061990 PMCID: PMC6049525 DOI: 10.1039/c8sc01617h] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 05/31/2018] [Indexed: 12/30/2022] Open
Abstract
An organocatalyst-mediated protein aldol ligation (OPAL) affords C–C linked bioconjugates at neutral pH.
The bioconjugation of proteins with small molecules has proved an invaluable strategy for probing and perturbing biological mechanisms. The general use of chemical methods for protein functionalisation can be limited however by the requirement for complicated reaction partners to be present in large excess, and harsh conditions which are incompatible with many protein scaffolds. Herein we describe a site-selective organocatalyst-mediated protein aldol ligation (OPAL) that affords stable carbon–carbon linked bioconjugates at neutral pH. OPAL enables rapid modification of proteins using simple aldehyde probes in minimal excess, and is utilised here in the affinity tagging of proteins in cell lysate. Furthermore we demonstrate that the β-hydroxy aldehyde OPAL product can be functionalised again at neutral pH in a tandem organocatalyst-mediated oxime ligation. This tandem strategy is showcased in the ‘chemical mimicry’ of a previously inaccessible natural dual post-translationally modified protein integral to the pathogenesis of the neglected tropical disease Leishmaniasis.
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Affiliation(s)
- Richard J Spears
- Department of Chemistry , University of York , York , YO10 5DD , UK .
| | - Robin L Brabham
- Department of Chemistry , University of York , York , YO10 5DD , UK .
| | - Darshita Budhadev
- Department of Chemistry , University of York , York , YO10 5DD , UK .
| | - Tessa Keenan
- Department of Chemistry , University of York , York , YO10 5DD , UK .
| | - Sophie McKenna
- Department of Chemistry , University of York , York , YO10 5DD , UK .
| | - Julia Walton
- Department of Chemistry , University of York , York , YO10 5DD , UK .
| | - James A Brannigan
- Department of Chemistry , University of York , York , YO10 5DD , UK .
| | | | | | - Michael Plevin
- Department of Biology , University of York , York , YO10 5DD , UK
| | - Martin A Fascione
- Department of Chemistry , University of York , York , YO10 5DD , UK .
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174
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Pommerening P, Stahl T, Oestreich M. Direct Acetophenone-Acetophenone Crossed Aldol Reaction and Aldol Self-Reaction Promoted by a Tethered Ru-S Complex. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Phillip Pommerening
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Germany
| | - Timo Stahl
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Germany
| | - Martin Oestreich
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Germany
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175
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Vlasserou I, Sfetsa M, Gerokonstantis DT, Kokotos CG, Moutevelis-Minakakis P. Combining prolinamides with 2-pyrrolidinone: Novel organocatalysts for the asymmetric aldol reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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176
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177
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Takeuchi T, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of α-Vinyl Acetamide. J Org Chem 2018; 83:5851-5858. [DOI: 10.1021/acs.joc.8b00743] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Toshifumi Takeuchi
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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178
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Furigay MH, Boucher MM, Mizgier NA, Brindle CS. Separation of Aldehydes and Reactive Ketones from Mixtures Using a Bisulfite Extraction Protocol. J Vis Exp 2018. [PMID: 29658940 DOI: 10.3791/57639] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The purification of organic compounds is an essential component of routine synthetic operations. The ability to remove contaminants into an aqueous layer by generating a charged structure provides an opportunity to use extraction as a simple purification technique. By combining the use of a miscible organic solvent with saturated sodium bisulfite, aldehydes and reactive ketones can be successfully transformed into charged bisulfite adducts that can then be separated from other organic components of a mixture by the introduction of an immiscible organic layer. Here, we describe a simple protocol for the removal of aldehydes, including sterically-hindered neopentyl aldehydes and some ketones, from chemical mixtures. Ketones can be separated if they are sterically unhindered cyclic or methyl ketones. For aliphatic aldehydes and ketones, dimethylformamide is used as the miscible solvent to improve removal rates. The bisulfite addition reaction can be reversed by basification of the aqueous layer, allowing for the re-isolation of the reactive carbonyl component of a mixture.
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179
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Role of Adamantane Amide Based on L-Proline Double-H Potential Organocatalyst in Aldol Reaction with Product Separated via Host-guest Interaction. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7364-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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180
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Paladhi S, Hwang IS, Yoo EJ, Ryu DH, Song CE. Kinetic Resolution of β-Hydroxy Carbonyl Compounds via Enantioselective Dehydration Using a Cation-Binding Catalyst: Facile Access to Enantiopure Chiral Aldols. Org Lett 2018. [PMID: 29537279 DOI: 10.1021/acs.orglett.8b00547] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A practical and highly enantioselective nonenzymatic kinetic resolution of racemic β-hydroxy carbonyl (aldol) compounds through enantioselective dehydration process was developed using a cation-binding Song's oligoethylene glycol (oligoEG) catalyst with potassium fluoride (KF) as base. A wide range of racemic aldols was resolved with extremely high selectivity factors ( s = up to 2393) under mild reaction conditions. This protocol is easily scalable. It provides an alternative approach for the syntheses of diverse biologically and pharmaceutically relevant chiral aldols in enantiomerically pure form. For example, racemic gingerols could participate in this kinetic resolution with superb efficiency ( s > 240), affording both enantiomerically pure gingerols and corresponding shogaols simultaneously in a single step. The dramatic effectiveness of such kinetic resolution process can be ascribed to systematic cooperative hydrogen-bonding catalysis in a densely confined supramolecular chiral cage in situ generated from the chiral catalyst, substrate, and KF.
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Affiliation(s)
- Sushovan Paladhi
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea.,Department of Chemistry , A.N.S. College , Barh , Patna 803213 , India
| | - In-Soo Hwang
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Eun Jeong Yoo
- Department of Chemistry , Kangwon National University , Chuncheon 24341 , Korea
| | - Do Hyun Ryu
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Choong Eui Song
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
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181
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182
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Duss M, Salvati Manni L, Moser L, Handschin S, Mezzenga R, Jessen HJ, Landau EM. Lipidic Mesophases as Novel Nanoreactor Scaffolds for Organocatalysts: Heterogeneously Catalyzed Asymmetric Aldol Reactions in Confined Water. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5114-5124. [PMID: 29313658 DOI: 10.1021/acsami.7b19740] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The unique molecular architecture of lipidic cubic phases (LCPs) and their cubosome dispersions comprise a well-defined, curved bilayer that spans the entire three-dimensional (3-D) material space, encompassing a network of two periodic, curved, and nonintersecting 3-D aqueous channels. The ensuing large lipid/water interfacial area makes these biomaterials an interesting matrix for the lateral immobilization of organocatalysts to catalyze organic reactions in confined water. Herein, we report for the first time the design, synthesis, assembly, and characterization of catalytically active LCPs and cubosomes and demonstrate their applicability as self-assembled, biomimetic, and recyclable nanoreactor scaffolds. Small-angle X-ray scattering, cryo-transmission electron microscopy, and dynamic light scattering were applied for the characterization of the mesophases. These mesophases can be recycled and enable efficient catalytic activity as well as modulation of the diastereo- and enantioselectivity for the aldol reaction of several benzaldehyde derivatives and cyclohexanone in water.
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Affiliation(s)
- Michael Duss
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Livia Salvati Manni
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, 8057 Zürich, Switzerland
- Department of Health Science & Technology, ETH Zurich , Schmelzbergstrasse 9, 8092 Zürich, Switzerland
| | - Laurent Moser
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Stephan Handschin
- Department of Health Science & Technology, ETH Zurich , Schmelzbergstrasse 9, 8092 Zürich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Science & Technology, ETH Zurich , Schmelzbergstrasse 9, 8092 Zürich, Switzerland
| | - Henning J Jessen
- Institute of Organic Chemistry, Albert-Ludwigs-University of Freiburg , Albertstrasse 21, 79104 Freiburg i. B., Germany
| | - Ehud M Landau
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, 8057 Zürich, Switzerland
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183
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Soares BM, Aguilar AM, Silva ER, Coutinho-Neto MD, Hamley IW, Reza M, Ruokolainen J, Alves WA. Chiral organocatalysts based on lipopeptide micelles for aldol reactions in water. Phys Chem Chem Phys 2018; 19:1181-1189. [PMID: 27942644 DOI: 10.1039/c6cp08135e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comprehensive study of the self-assembly in water of a lipopeptide consisting of a sequence of l-proline, l-arginine and l-tryptophan with a hydrocarbon chain has been performed. Fluorescence assays were used to determine the critical aggregation concentration. In situ small-angle X-ray scattering (SAXS) and molecular dynamics simulations showed the presence of spherical micelles with diameters around 6 nm. In agreement with these results, cryo-TEM images showed globular aggregates with diameters ranging from ≈4 nm up to ≈9 nm. Furthermore, the lipopeptide catalytic activity has been tested for the direct aldol reaction between cyclohexanone and p-nitrobenzaldehyde, and we have observed that the self-association of the organocatalyst played a critical role in the enhanced activity. Water affects the selectivity, and poor results are obtained under neat reaction conditions. The location of the catalytic groups at the lipopetide/water solvent interface also endowed unusual selectivity in the catalyzed aldol reactions. Under optimized reaction conditions, high yields (up to >99%), good enantioselectivity (ee up to 85%) and high diastereoselectivity (ds up to 92 : 8) were obtained.
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Affiliation(s)
- B M Soares
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
| | - A M Aguilar
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema 09972270, Brazil
| | - E R Silva
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil
| | - M D Coutinho-Neto
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
| | - I W Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - M Reza
- Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076, Finland
| | - J Ruokolainen
- Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076, Finland
| | - W A Alves
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
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184
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Cui J, Ohtsuki A, Watanabe T, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of Thioamide with an α‐Vinyl Appendage. Chemistry 2018; 24:2598-2601. [DOI: 10.1002/chem.201800020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Jin Cui
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Akimichi Ohtsuki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Takumi Watanabe
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
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185
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Álvarez-Miguel L, Barbero H, Sacristán-Martín A, Martín Álvarez JM, Pérez-Encabo A, Álvarez CM, García-Rodríguez R, Miguel D. Copper Complexes in the Promotion of Aldol Addition to Pyridine-2-carboxaldehyde: Synthesis of Homo- and Heteroleptic Complexes and Stereoselective Double Aldol Addition. Inorg Chem 2018; 57:264-276. [PMID: 29227100 DOI: 10.1021/acs.inorgchem.7b02448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
CuCl2·2H2O and Cu(ClO4)2·6H2O are able to promote aldol addition of pyridine-2-carboxaldehyde (pyca) with acetone, acetophenone, or cyclohexenone under neutral and mild conditions. The general and simple one-pot procedure for the aldol addition to Cu(II) complexes accesses novel Cu complexes with a large variety of different structural motifs, from which the aldol-addition ligand can be liberated by treatment with NH3. Neutral heteroleptic complexes in which the ligand acts as bidentate, or homoleptic cationic complexes in which the ligand acts as tridentate can be obtained depending on the copper salt used. The key step in these reactions is the coordination of pyca to copper, which increases the electrophilic character of the aldehyde, with Cu(ClO4)2 leading to a higher degree of activation than CuCl2, as predicted by DFT calculations. A regio- and stereoselective double aldol addition of pyca in the reaction of Cu(ClO4)2·6H2O with acetone leads to the formation of a dimer copper complex in which the novel double aldol addition product acts as a pentadentate ligand. A possible mechanism is discussed. The work is supported by extensive crystallographic studies.
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Affiliation(s)
- Lucía Álvarez-Miguel
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Héctor Barbero
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Adriana Sacristán-Martín
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - José M Martín Álvarez
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Alfonso Pérez-Encabo
- IU CINQUIMA/Química Orgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Celedonio M Álvarez
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Raúl García-Rodríguez
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Daniel Miguel
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
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186
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Kawajiri T, Ohta R, Fujioka H, Sajiki H, Sawama Y. Aromatic aldehyde-selective aldol addition with aldehyde-derived silyl enol ethers. Chem Commun (Camb) 2018; 54:374-377. [DOI: 10.1039/c7cc08936h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unprecedented chemoselectivity between aromatic and aliphatic aldehydes has been achieved in the Mukaiyama aldol reaction using aldehyde-derived silyl enol ethers.
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Affiliation(s)
- Takahiro Kawajiri
- Laboratory of Organic Chemistry
- Gifu Pharmaceutical University 1-25-4
- Daigaku-nishi
- Gifu
- Japan
| | - Reiya Ohta
- Graduate School of Pharmaceutical Sciences
- Osaka University 1-6
- Yamada-oka
- Suita
- Japan
| | - Hiromichi Fujioka
- Graduate School of Pharmaceutical Sciences
- Osaka University 1-6
- Yamada-oka
- Suita
- Japan
| | - Hironao Sajiki
- Laboratory of Organic Chemistry
- Gifu Pharmaceutical University 1-25-4
- Daigaku-nishi
- Gifu
- Japan
| | - Yoshinari Sawama
- Laboratory of Organic Chemistry
- Gifu Pharmaceutical University 1-25-4
- Daigaku-nishi
- Gifu
- Japan
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187
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Nakano H, Alade Owolabi I, Chennapuram M, Okuyama Y, Kwon E, Seki C, Tokiwa M, Takeshita M. β-Amino Alcohol Organocatalysts for Asymmetric Additions. HETEROCYCLES 2018. [DOI: 10.3987/rev-18-sr(t)3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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188
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Yamashita Y, Yasukawa T, Yoo WJ, Kitanosono T, Kobayashi S. Catalytic enantioselective aldol reactions. Chem Soc Rev 2018; 47:4388-4480. [DOI: 10.1039/c7cs00824d] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent developments in catalytic asymmetric aldol reactions have been summarized.
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Affiliation(s)
- Yasuhiro Yamashita
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Tomohiro Yasukawa
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Woo-Jin Yoo
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Taku Kitanosono
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Shū Kobayashi
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
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189
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Alegre-Requena JV, Marqués-López E, Herrera RP. Organocatalyzed Enantioselective Aldol and Henry Reactions Starting from Benzylic Alcohols. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701351] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Juan V. Alegre-Requena
- Laboratorio de Organocatálisis Asimétrica. Departamento de Química Orgánica.; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza. C/; Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Eugenia Marqués-López
- Laboratorio de Organocatálisis Asimétrica. Departamento de Química Orgánica.; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza. C/; Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Raquel P. Herrera
- Laboratorio de Organocatálisis Asimétrica. Departamento de Química Orgánica.; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza. C/; Pedro Cerbuna 12 50009 Zaragoza Spain
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190
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Illa O, Porcar-Tost O, Robledillo C, Elvira C, Nolis P, Reiser O, Branchadell V, Ortuño RM. Stereoselectivity of Proline/Cyclobutane Amino Acid-Containing Peptide Organocatalysts for Asymmetric Aldol Additions: A Rationale. J Org Chem 2017; 83:350-363. [PMID: 29186658 DOI: 10.1021/acs.joc.7b02745] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Several α,β,α- or α,γ,α-tripeptides, consisting of a central cyclobutane β- or γ-amino acid being flanked by two d- or l-proline residues, have been synthesized and tested as organocatalysts in asymmetric aldol additions. High yields and enantioselectivities have been achieved with α,γ,α-tripeptides, being superior to peptides containing a cyclobutane β-amino acid residue. This is probably due to their high rigidity, which hinders some of the peptide catalysts to adopt the proper active conformation. This reasoning correlates with the major conformation of the peptides in the ground state, as suggested by 1H NMR and computational calculations. The configuration of the aldol products is controlled by the proline chirality, and consequently, the R/S configuration of aldol products can be tuned by the use of either commercially available d- or l-proline. The enantioselectivity in the aldol reactions is reversed if the reactions are carried out in the presence of water or other protic solvents such as methanol. Spectroscopic and theoretical investigations revealed that this effect is not the consequence of conformational changes in the catalyst but rather caused by the participation of a water molecule in the rate determining transition state, in such a way that the preferential nucleophilic attack is oriented to the opposite enantiotopic aldehyde face.
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Affiliation(s)
- Ona Illa
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Oriol Porcar-Tost
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Carme Robledillo
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Carlos Elvira
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Pau Nolis
- Servei de Ressonància Magnètica Nuclear, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Oliver Reiser
- Institut für Organische Chemie, Universität Regensburg , Universitätsstr. 31, 95053 Regensburg, Germany
| | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
| | - Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Spain
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191
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Huang GT, Yu JSK. Catalytic Roles of Histidine and Arginine in Pyruvate Class II Aldolase: A Perspective from QM/MM Metadynamics. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03398] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gou-Tao Huang
- Department of Biological Science and Technology, ‡Institute of Bioinformatics and Systems
Biology, and ¶Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu City 300, Taiwan
| | - Jen-Shiang K. Yu
- Department of Biological Science and Technology, ‡Institute of Bioinformatics and Systems
Biology, and ¶Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu City 300, Taiwan
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192
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Stopka T, Niggemann M, Maulide N. α-Carbonyl Cations in Sulfoxide-Driven Oxidative Cyclizations. Angew Chem Int Ed Engl 2017; 56:13270-13274. [PMID: 28834106 DOI: 10.1002/anie.201705964] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Indexed: 12/23/2022]
Abstract
The selective, metal-free generation of α-carbonyl cations from simple internal alkynes was accomplished by the addition of a sulfoxide to a densely substituted vinyl cation. The high reactivity of the α-carbonyl cations was found to efficiently induce hydrogen and even carbon shift reactions with unusual selecivities. Complex compounds with highly congested tertiary and all-carbon-substituted quartenary carbon centers can thus be accessed in a single step from simple precursors. Mechanistic analysis strongly supports the intermediacy of the title compounds and provides a simple predictive scheme for the migratory aptitude of different substituents.
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Affiliation(s)
- Tobias Stopka
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Meike Niggemann
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
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193
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Stopka T, Niggemann M, Maulide N. α-Carbonylkationen in Sulfoxid-vermittelten oxidativen Cyclisierungen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705964] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tobias Stopka
- Institut für Organische Chemie; RWTH Aachen Universität; Landoltweg 1 52074 Aachen Deutschland
| | - Meike Niggemann
- Institut für Organische Chemie; RWTH Aachen Universität; Landoltweg 1 52074 Aachen Deutschland
| | - Nuno Maulide
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
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194
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Obregón-Zúñiga A, Juaristi E. (2S,4R)-Hyp-(S)-Phe-OMe dipeptide supported on imidazolium tagged molecules as recoverable organocatalysts for asymmetric aldol reactions using water as reaction medium. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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195
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Lee HJ, Moteki SA, Arumugam N, Almansour AI, Kumar RS, Liu Y, Maruoka K. Practical Synthesis of Two Different Pseudoenantiomeric Organocatalysts with cis
-Cyclohexanediamine Structure from a Common Chiral Source. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hyo-Jun Lee
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
| | - Shin A. Moteki
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
| | - Natarajan Arumugam
- Department of Chemistry, College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Abdulrahman I. Almansour
- Department of Chemistry, College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Yan Liu
- School of Chemical Engineering and Light Industry; Guangdong University of Technology; No.100 West Waihuan Road HEMC Panyu District Guangzhou 510006 China
| | - Keiji Maruoka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
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196
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Kaur J, Chauhan P, Singh S, Chimni SS. Journey Heading towards Enantioselective Synthesis Assisted by Organocatalysis. CHEM REC 2017; 18:137-153. [DOI: 10.1002/tcr.201700020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Jasneet Kaur
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
| | - Pankaj Chauhan
- Institute of Organic Chemistry; RWTH Aachen University, Germany
| | - Sarbjit Singh
- Department of Chemistry; University of Texas at Dallas, USA
| | - Swapandeep Singh Chimni
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
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197
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Zhao J, He F, Zhang F, Yang X, Tian Z, Xue Y. The Role of Water in the Catalyst-Free Aldol Reaction of Water-Insoluble N-Methyl-2,4-thiazolidinedione with N-Methylisatin from QM/MM Monte Carlo Simulations. Chemphyschem 2017; 18:2123-2131. [PMID: 28544113 DOI: 10.1002/cphc.201700423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/22/2017] [Indexed: 11/08/2022]
Abstract
The role of water in the uncatalyzed aldol reaction of N-methyl-2,4-thiazolidinedione with N-methylisatin is investigated through Monte Carlo statistical mechanics simulations that utilize free energy perturbation theory and the mixed quantum mechanics and molecular mechanics (QM/MM) model with PDDG/PM3 for the QM method in "on-water" and DMSO environments. There are several conceivable orientations between thiazolidinedione and isatin in the process of C-C bond formation. However, the formation of the C-C bond takes place between the re face of isatin and the si face of (E)-enol of the thiazolidinedione to form the preferred anti-type product, which results from enhanced hydrogen-bonding interactions between water molecules and the oxygen atoms undergoing bond breakage and bond formation during the reaction. Novel insights into the effect of water on the aldol reaction are presented herein.
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Affiliation(s)
- Jianming Zhao
- College of Chemistry, Key Lab of Green Chemistry, and Technology in Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
| | - Fen He
- College of Chemistry, Key Lab of Green Chemistry, and Technology in Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
| | - Fan Zhang
- College of Chemistry, Key Lab of Green Chemistry, and Technology in Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
| | - Xin Yang
- College of Chemistry, Key Lab of Green Chemistry, and Technology in Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
| | - Zhiyue Tian
- College of Chemistry, Key Lab of Green Chemistry, and Technology in Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
| | - Ying Xue
- College of Chemistry, Key Lab of Green Chemistry, and Technology in Ministry of Education, Sichuan University, Chengdu, 610064, P.R. China
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198
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Simon A, Lam YH, Houk KN. Origins of Stereoselectivity of Enamine-Iminium-Activated Nazarov Cyclizations by Vicinal Diamines. J Org Chem 2017; 82:8186-8190. [PMID: 28678495 DOI: 10.1021/acs.joc.7b01606] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The mechanism and sources of asymmetric induction in Nazarov reactions reported by Tius and co-workers have been determined with quantum chemical calculations. A chiral vicinal diamine forms an enamine-iminium adduct with α-ketoenones, and this undergoes a cationic conrotatory electrocyclization. The chiral diamine imparts stereocontrol in the enamine-iminium complex by forming a six-membered ring that favors one helicity of the electrocyclization transition state.
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Affiliation(s)
- Adam Simon
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095-1569, United States
| | - Yu-Hong Lam
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095-1569, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095-1569, United States
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199
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Reyes-Rangel G, Vargas-Caporali J, Juaristi E. Asymmetric Michael addition reaction organocatalyzed by stereoisomeric pyrrolidine sulfinamides under neat conditions. A brief study of self-disproportionation of enantiomers. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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200
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Quintard A, Rodriguez J. Bicatalyzed Three-Component Stereoselective Decarboxylative Fluoro-Aldolization for the Construction of Elongated Fluorohydrins. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02353] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adrien Quintard
- Aix Marseille Univ, CNRS, Centrale Marseille,
iSm2, Marseille, 13397, France
| | - Jean Rodriguez
- Aix Marseille Univ, CNRS, Centrale Marseille,
iSm2, Marseille, 13397, France
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