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Hsieh H, Tu M, Su Y, Ko B, Das K, Huang J. Synthesis and structures of tantalum chloride and tantalum aryloxide compounds bearing bidentate and tridentate pyrrole‐amine ligands. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hsiang‐Hua Hsieh
- Department of Chemistry National Changhua University of Education Changhua Taiwan
| | - Meng‐Hsiu Tu
- Department of Chemistry National Changhua University of Education Changhua Taiwan
| | - Yu‐Chia Su
- Department of Chemistry National Chung‐Hsing University Taichung Taiwan
| | - Bao‐Tsan Ko
- Department of Chemistry National Chung‐Hsing University Taichung Taiwan
| | - Kuheli Das
- Department of Chemistry National Changhua University of Education Changhua Taiwan
| | - Jui‐Hsien Huang
- Department of Chemistry National Changhua University of Education Changhua Taiwan
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2
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Roy MMD, Omaña AA, Wilson ASS, Hill MS, Aldridge S, Rivard E. Molecular Main Group Metal Hydrides. Chem Rev 2021; 121:12784-12965. [PMID: 34450005 DOI: 10.1021/acs.chemrev.1c00278] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review serves to document advances in the synthesis, versatile bonding, and reactivity of molecular main group metal hydrides within Groups 1, 2, and 12-16. Particular attention will be given to the emerging use of said hydrides in the rapidly expanding field of Main Group element-mediated catalysis. While this review is comprehensive in nature, focus will be given to research appearing in the open literature since 2001.
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Affiliation(s)
- Matthew M D Roy
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Alvaro A Omaña
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
| | - Andrew S S Wilson
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Michael S Hill
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
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Chen Y, Jiang W, Li B, Fu G, Chen S, Zhu H. Reaction of an N/Al FLP-based aluminum hydride toward alkynes: deprotonated alumination versus hydroalumination with regioselective cis-addition character. Dalton Trans 2019; 48:9152-9160. [PMID: 31147661 DOI: 10.1039/c9dt00903e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of an N/Al FLP-based aluminum dihydride (o-TMP-C6H4)AlH2 (1, TMP = N(CMe2CH2)2CH2) with several terminal and internal alkynes were studied. 1 reacted with HC[triple bond, length as m-dash]CR by deprotonated alumination to yield (o-TMP-C6H4)Al(C[triple bond, length as m-dash]CR)2 (R = Ph (2), 1-C4H3S (3)) and with HC[triple bond, length as m-dash]CPPh2 by deprotonated alumination followed by HC[triple bond, length as m-dash]CPPh2 C(sp)-H-activation addition to yield [o-(TMP)H-C6H4]Al(C[triple bond, length as m-dash]CPPh2)3 (4). Furthermore, 1 reacted with R1C[triple bond, length as m-dash]CR2 to produce mono-hydroalumination compounds (o-TMP-C6H4)AlH(CR1[double bond, length as m-dash]CHR2) (R1,R2 = Ph,Ph (5), Ph,Et (6) and SiHMeR',Ph (7, R' = N(SiMe2Ph)-2,6-iPr2C6H3), all as monomers, as well as {(o-TMP-C6H4)AlH[C(PPh2)[double bond, length as m-dash]CHPh]}2 (8), a dimer formed due to the intermolecular P/Al donor-acceptor interaction. Moreover, bis-hydroalumination compounds (o-TMP-C6H4)Al(CR1[double bond, length as m-dash]CHR2)2 (R1,R2 = SiHMe2,PPh2 (9) and SiHPh2,PPh2 (10)) were produced. Natural Bond Orbital (NBO) analysis was performed, which revealed the inequivalent charge distribution on the C[triple bond, length as m-dash]C carbon atoms of the alkynes that have two different substituents. The electronic matching interaction between the Al-H and C[triple bond, length as m-dash]C bonds is discussed. The hydroalumination reaction exhibits the regioselective cis-addition character.
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Affiliation(s)
- Yilin Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China.
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4
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Soluble aluminum hydrides function as catalysts in deprotonation, insertion, and activation reactions. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.017] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Pei H, Yang H, Lu N, Liu W, Li Y. Aluminium Complexes Bearing Pyrrolide Ligand as Efficient Catalysts for Ring-Opening Polymerization of ε-Caprolactone. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201600464] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hao Pei
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering; Yan'an University; 716000 Yan'an Shaanxi P. R. China
| | - Ning Lu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou P. R. China
| | - Wei Liu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou P. R. China
| | - Yahong Li
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou P. R. China
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6
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Xi Y, Rajendran NM, Zhang W, Sun Y, Lei M, Sun WH. Quinolyl-Amidinates Chelating Bimetallic Magnesium and Mononuclear Aluminum Complexes forϵ-Caprolactone Polymerization. ChemistrySelect 2016. [DOI: 10.1002/slct.201601517] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yanxia Xi
- State Key Laboratory of Chemical Resource Engineering, Institute of Material Medicine, College of Science; Beijing University of Chemical Technology; Beijing 100029 China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Natesan Mannangatti Rajendran
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Yang Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, Institute of Material Medicine, College of Science; Beijing University of Chemical Technology; Beijing 100029 China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
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Guo Z, Li P, Feng P, Liu K, Wei X. 2,5-Bis[(dimethylamino)methyl]-1 H-pyrrole. IUCRDATA 2016. [DOI: 10.1107/s2414314616016175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The asymmetric unit contains two independent molecules, C10H19N3, which are linked into dimers by two Npyrrole—H...Namine hydrogen bonds.
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8
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Uhl W, Willeke M, Hengesbach F, Hepp A, Layh M. Aluminum and Gallium Hydrazides as Active Lewis Pairs: Cooperative C–H Bond Activation with H–C≡C–Ph and Pentafluorobenzene. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00658] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Matthias Willeke
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Frank Hengesbach
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Marcus Layh
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
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9
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Yang Z, Yi Y, Zhong M, De S, Mondal T, Koley D, Ma X, Zhang D, Roesky HW. Addition Reactions of Me3SiCN with Aldehydes Catalyzed by Aluminum Complexes Containing in their Coordination Sphere O, S, and N Ligands. Chemistry 2016; 22:6932-8. [DOI: 10.1002/chem.201505162] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Zhi Yang
- School of Chemical Engineering and Environment; Beijing Institute of Technology; 100081 Beijing P. R. China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; P. R. China
| | - Yafei Yi
- School of Chemical Engineering and Environment; Beijing Institute of Technology; 100081 Beijing P. R. China
| | - Mingdong Zhong
- School of Chemical Engineering and Environment; Beijing Institute of Technology; 100081 Beijing P. R. China
| | - Sriman De
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Totan Mondal
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Debasis Koley
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Xiaoli Ma
- School of Chemical Engineering and Environment; Beijing Institute of Technology; 100081 Beijing P. R. China
| | - Dongxiang Zhang
- School of Chemical Engineering and Environment; Beijing Institute of Technology; 100081 Beijing P. R. China
| | - Herbert W. Roesky
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
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Huang YT, Wang WC, Hsu CP, Lu WY, Chuang WJ, Chiang MY, Lai YC, Chen HY. The ring-opening polymerization of ε-caprolactone and l-lactide using aluminum complexes bearing benzothiazole ligands as catalysts. Polym Chem 2016. [DOI: 10.1039/c6py00569a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of aluminum complexes bearing benzothiazole ligands was synthesized and the ring-opening polymerization of ε-caprolactone (CL) and l-lactide (LA) using these aluminum complexes as catalysts was studied.
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Affiliation(s)
- Yen-Tzu Huang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wei-Chu Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Chun-Pin Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wan-Jung Chuang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
- Department of Chemistry
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
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11
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Roymuhury SK, Chakraborty D, Ramkumar V. Aluminium complexes bearing N,O-aminophenol ligands as efficient catalysts for the ring opening polymerization of lactide. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.07.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Zhao Y, Liu Y, Wu B, Yang XJ. Reactions of α-diimine-aluminum complexes with sodium alkynides: versatile structures of aluminum σ-alkynide complexes. Dalton Trans 2015; 44:13671-80. [PMID: 26147659 DOI: 10.1039/c5dt01693b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Reaction of AlCl(3) with the monoanionic α-diimine ligand [NaL] yielded the complex [L˙(-)Al(III)Cl(2)(-)] (1, L = [(2,6-iPr(2)C(6)H(3))NC(Me)](2)), and subsequent reduction of by sodium metal afforded the mononuclear [L(2-)Al(III)Cl(-)(THF)] (2) and binuclear [L(2-)(THF)Al(II)-Al(II)(THF)L(2-)] (3). Compounds 2 and 3 exhibit interesting reactivities to sodium alkynides at room temperature. Treatment of dialumane 3 with 1 equiv. of 4-methylphenylacetylene in the presence of sodium metal yielded the asymmetric Al-Al-bonded compound [Na(Et(2)O)][LAl-Al(C[triple bond, length as m-dash]C(C(6)H(4)-Me))L] (4) containing an alkynyl group attached to one of the Al atoms. The reaction of 2 with 4-methylphenylacetylene and Na (or sodium 4-methylphenylacetylide) resulted in the mononuclear product [L(THF)Al(C[triple bond, length as m-dash]C-(C(6)H(4)-Me))] (5) containing a single terminal acetylide ligand. Precursor 2 reacted with 2 equiv. of phenylacetylene (or 4-methylphenylacetylene, trimethylsilylacetylene) and Na to give the tweezer "ate" complexes, [Na(THF)(DME)][LAl(C[triple bond, length as m-dash]CR)(2)] (R = C(6)H(5), ; C(6)H(4)-Me, ; Si(Me)(3), 6c), [Na(THF)](2)[LAl(C[triple bond, length as m-dash]CPh)(2)](2)(μ-C(7)H(8)) (7), [Na(C(7)H(8))][(μ-Na)][LAl(C[triple bond, length as m-dash]CSi(Me)(3))(2)](2) (8), as well as the polymeric [LAl(C[triple bond, length as m-dash]CPh)(2)Na](n) (9). In the products, two alkynyl groups coordinate terminally to one Al center and a sodium ion is embedded between these two alkynyls. Interestingly, both cycloaddition and terminal acetylide coordination of three equiv. of alkyne occurred in the reaction of with 1-hexyne, resulting in the unique dialuminum complex [Na(Et(2)O)](2)[{L(C(C(4)H(9))[double bond, length as m-dash]CH)}Al(C[triple bond, length as m-dash]C(C(4)H(9)))(2)](2) (10). Complexes 1-10 have been characterized by NMR ((1)H, (13)C) and IR spectroscopy, elemental analysis, and X-ray diffraction, and their electronic structures were studied by DFT calculations.
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Affiliation(s)
- Yanxia Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China.
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Vránová I, Jambor R, Růžička A, Hoffmann A, Herres-Pawlis S, Dostál L. Antimony(III) and bismuth(III) amides containing pendant N-donor groups--a combined experimental and theoretical study. Dalton Trans 2015; 44:395-400. [PMID: 25385247 DOI: 10.1039/c4dt02692f] [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
N,N- and N,N,N-chelated antimony(III) and bismuth(III) chlorides L(1-3)MCl2 1-4 [for L(1): M = Sb (1), for L(2): M = Sb (2) and for L(3): M = Sb (3) and Bi (4)], containing ligands L(1-3) derived from the pyrrole ring (where L(1) = C4H3N-2-(CH[double bond, length as m-dash]N-2',6'-iPr2C6H3), L(2) = C4H2N-2,5-(CH2NMe2)2, L(3) = C4H2N-2,5-(CH2NC4H8)2), were prepared by the treatment of lithium precursors with SbCl3 or BiCl3. Molecular structures 1-4 of were described both in solution (NMR spectroscopy) and in the solid state (single-crystal X-ray diffraction analysis). Structures of 1-4 were also subjected to a density functional theory study.
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Affiliation(s)
- Iva Vránová
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10, Pardubice, Czech Republic.
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Tridentate pyrrolylzinc compounds: Synthesis, structures, reactivities and catalytic cyclotrimerization reaction of isocyanate. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hao P, Yang Z, Li W, Ma X, Roesky HW, Yang Y, Li J. Aluminum Complexes Containing the C–O–Al–O–C Framework as Efficient Initiators for Ring-Opening Polymerization of ε-Caprolactone. Organometallics 2014. [DOI: 10.1021/om500950p] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Pengfei Hao
- School
of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China
| | - Zhi Yang
- School
of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China
| | - Wenling Li
- School
of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China
| | - Xiaoli Ma
- School
of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Georg-August-Universität Göttingen, Tammannstrasse
4, D-37077 Göttingen, Germany
| | - Ying Yang
- School
of Chemistry and Chemical Engineering, Central South University, 410083 Changsha, China
| | - Jiarong Li
- School
of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China
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Rimoldi M, Mezzetti A. Site isolated complexes of late transition metals grafted on silica: challenges and chances for synthesis and catalysis. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00450g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Grafting, quo vadis? The reasons for the aggregation of late transition metal complexes on oxide supports under reducing conditions and/or in the presence of π-accepting ligands are discussed, and strategies are suggested to prevent it.
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Affiliation(s)
- Martino Rimoldi
- Department of Chemistry and Applied Biosciences
- ETH Zurich, Switzerland
| | - Antonio Mezzetti
- Department of Chemistry and Applied Biosciences
- ETH Zurich, Switzerland
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Jianming R, Anguo X, Hongwei W, Hailin Y. Review – recent development of ring-opening polymerization of cyclic esters using aluminum complexes. Des Monomers Polym 2013. [DOI: 10.1080/15685551.2013.840509] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Ruan Jianming
- Powder Metallurgy Research Institute, Central South University, Changsha, Hunan, 410086, P.R. China
| | - Xiao Anguo
- Department of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde, Hunan, 415000, P.R. China
| | - Wu Hongwei
- Powder Metallurgy Research Institute, Central South University, Changsha, Hunan, 410086, P.R. China
| | - Yang Hailin
- Powder Metallurgy Research Institute, Central South University, Changsha, Hunan, 410086, P.R. China
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Liu PH, Chuang FJ, Tu CY, Hu CH, Lin TW, Wang YT, Lin CH, Datta A, Huang JH. Aluminum complexes incorporating symmetrical and asymmetrical tridentate pincer type pyrrolyl ligands: synthesis, characterization and reactivity study. Dalton Trans 2013; 42:13754-64. [PMID: 23907274 DOI: 10.1039/c3dt51133b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of aluminum complexes incorporating substituted symmetrical and asymmetrical tridentate pyrrolyl ligands are synthesized conveniently and the treatment of the derivatives with small organic molecules are analyzed. The reaction of lithiated [C4H2NH(2-CH2NH(t)Bu)(5-CH2NR1R2)], where for 1, R1 = R2 = Me; 2, R1 = H, R2 = (t)Bu, with AlCl3 in diethyl ether affords Al[C4H2N(2-CH2NH(t)Bu)(5-CH2NMe2)]Cl2 (3) and Al[C4H2N(2,5-CH2NH(t)Bu)2]Cl2 (4), respectively, in high yields. Furthermore, subjecting 3 and 4 to reaction with one equiv. of LiNMePh in diethyl ether generates Al[C4H2N(2-CH2NH(t)Bu)(5-CH2NMe2)][NMePh]Cl (5) and Al[C4H2N(2,5-CH2NH(t)Bu)2][NMePh]Cl (6), respectively, while eliminating one equiv. of LiCl. The reaction between compound 4 with two equiv. of LiO-Ph-4-Me in diethyl ether yields the aluminum di-phenoxide compound Al[C4H2N(2,5-CH2NH(t)Bu)2](O-Ph-4-Me)2 (7) whereas the combination of 3 and two equiv. of LiNH(t)Bu, produces Al[C4H2N(2-CH2N(t)Bu)(5-CH2NMe2)](NH(t)Bu)(NH2(t)Bu) (8). Additionally, the mixing of 1 and one equiv. of AlMe3 renders Al[C4H2N(2-CH2NH(t)Bu)(5-CH2NMe2)]Me2 (9). Adding one more equiv. of AlMe3 with 9 affords {Al[C4H2N(2-CH2NH(t)Bu)(5-CH2NMe2)AlMe3]Me2} (10), which can also be obtained by treating 1 with two equiv. of AlMe3 directly. The treatment of 9 with one equiv. of 2,6-dimethylphenol in diethyl ether gives the aluminum alkoxide derivative, Al[C4H2N(2-CH2NH(t)Bu)(5-CH2NMe2)](O-C6H3-2,6-Me2)Me (11). Furthermore, the reaction between 9 and one equiv. of 1-ethyl-1-phenyl ketene, initiates the aluminum dimethyl complex Al{C4H2N[2-CH2CEtPh-C(=O)-NH(t)Bu](5-CH2NMe2)}Me2 (12) with a C-N bond breakage and a C-C bond formation. All the Al-derivatives are characterized by (1)H and (13)C NMR spectroscopy and the molecular structures are determined by single crystal X-ray diffractometry in solid state.
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Affiliation(s)
- Pei-Hsin Liu
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan
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Hsiao CS, Wang TY, Datta A, Liao FX, Hu CH, Lin CH, Huang JH, Lee TY. Zinc complexes incorporating with symmetrical and asymmetrical polydentate nitrogen-donor pyrrolyl ligands: Synthesis, characterization, and ring-opening polymerization. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.08.016] [Citation(s) in RCA: 9] [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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20
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