G. Bartoli, R. Beleggia, S. Giuli, A. Giuliani, E. Marcantoni et al., The CeCl 3 ·7H 2 O?NaI system as promoter in the synthesis of functionalized trisubstituted alkenes via Knoevenagel condensation, 2006.

, Tetrahedron Lett, vol.47, pp.6501-6504

B. H. Besler, K. M. Merz, and P. A. Kollman, Atomic charges derived from semiempirical methods, Journal of Computational Chemistry, vol.2, issue.4, pp.431-439, 1990.
DOI : 10.1002/jcc.540110404

G. Clavé, L. Garoux, C. Boulanger, P. Hesemann, and C. Grison, Ecological recycling of a bio-based catalyst for Cu click reaction: a new strategy for a greener sustainable catalysis, pp.1410-1416, 2016.

G. Clavé, F. Pelissier, C. , and S. , Ecocatalyzed Suzuki cross coupling of heteroaryl compounds, Green Chemistry, vol.3, issue.17, pp.4093-4103, 2017.
DOI : 10.1039/C4TA06678B

J. Cui and L. Zhang, Metallurgical recovery of metals from electronic waste: A review, Journal of Hazardous Materials, vol.158, issue.2-3, pp.228-256, 2008.
DOI : 10.1016/j.jhazmat.2008.02.001

S. Debarge, P. Mcdaid, P. O-'neill, J. Frahill, J. W. Wong et al., Evaluation of Several Routes to Advanced Pregabalin Intermediates: Synthesis and Enantioselective Enzymatic Reduction Using Ene-Reductases, Organic Process Research & Development, vol.18, issue.1, pp.109-121, 1021.
DOI : 10.1021/op4002774

S. E. Denmark, W. , and T. , Lewis Base Activation of Lewis Acids:?? Catalytic Enantioselective Allylation and Propargylation of Aldehydes, Journal of the American Chemical Society, vol.123, issue.25, pp.6199-6200, 2001.
DOI : 10.1021/ja016017e

V. Escande, L. Garoux, C. Grison, Y. Thillier, F. Debart et al., Ecological catalysis and phytoextraction: Symbiosis for future, Applied Catalysis B: Environmental, vol.146, pp.279-288, 2014.
DOI : 10.1016/j.apcatb.2013.04.011

URL : https://hal.archives-ouvertes.fr/hal-00952652

V. Escande, C. H. Lam, C. Grison, and A. , P. T, 2017.

. Ecomnox, a biosourced catalyst for selective aerobic oxidative cleavage of activated 1,2-diols, ACS Sustain. Chem. Eng, vol.5, pp.3214-3222

V. Escande, T. K. Olszewski, and C. Grison, Preparation of ecological catalysts derived from Zn hyperaccumulating plants and their catalytic activity in Diels???Alder reaction, Comptes Rendus Chimie, vol.17, issue.7-8, pp.731-737, 2014.
DOI : 10.1016/j.crci.2013.09.009

V. Escande, T. K. Olszewski, and C. Grison, From biodiversity to catalytic diversity: how to control the reaction mechanism by the nature of metallophytes, Environmental Science and Pollution Research, vol.190, issue.8, pp.5653-5666, 2015.
DOI : 10.1016/S0927-7757(01)00690-2

URL : https://hal.archives-ouvertes.fr/hal-01937604

V. Escande, T. K. Olszewski, E. Petit, and C. Grison, Biosourced Polymetallic Catalysts: An Efficient Means To Synthesize Underexploited Platform Molecules from Carbohydrates, ChemSusChem, vol.31, issue.7, 1915.
DOI : 10.1021/jo01342a015

V. Escande, E. Petit, L. Garoux, C. Boulanger, and C. Grison, , 2015.

. Switchable-alkene-epoxidation, NaHCO 3 : efficient heterogeneous catalysis derived from biosourced Eco-Mn, ACS Sustain. Chem. Eng, vol.3, issue.2 2, pp.2704-2715

V. Escande, C. Poullain, G. Clavé, E. Petit, N. Masquelez et al., Bio-based and environmental input for transfer hydrogenation using EcoNi(0) catalyst in isopropanol, Applied Catalysis B: Environmental, vol.210, pp.495-503, 2017.
DOI : 10.1016/j.apcatb.2017.04.023

URL : https://hal.archives-ouvertes.fr/hal-01625972

V. Escande, A. Velati, C. Garel, B. Renard, E. Petit et al., Phytoextracted mining wastes for ecocatalysis: Eco-Mn R , an efficient and ecofriendly plant-based catalyst for reductive amination of ketones Ecocatalysis for 2H- chromenes synthesis: an integrated approach for phytomanagement of polluted ecosystems, Green Chem. Environ. Sci. Pollut. Res, vol.17, issue.22, pp.2188-2199, 1007.

M. J. Frisch, G. W. Trucks, H. B. Schlegel, G. E. Scuseria, M. A. Robb et al., Gaussian 09, 2009.

C. Garel, B. Renard, V. Escande, A. Galtayries, P. Hesemann et al., CC bond formation strategy through ecocatalysis: Insights from structural studies and synthetic potential, Applied Catalysis A: General, vol.504, pp.272-286, 2015.
DOI : 10.1016/j.apcata.2015.01.021

C. D. Gomez-balderas, N. Cochet, V. Bert, E. Tarnaud, and C. Sarde, 16S rDNA analysis of bacterial communities associated with the hyper accumulator Arabidopsis halleri grown on a Zn and Cd polluted soil, European Journal of Soil Biology, vol.60, pp.16-23, 2014.
DOI : 10.1016/j.ejsobi.2013.10.006

URL : https://hal.archives-ouvertes.fr/ineris-00963516

C. Grison, Combining phytoextraction and ecocatalysis: a novel concept for greener chemistry, an opportunity for remediation, Environmental Science and Pollution Research, vol.22, issue.8, pp.5589-5591, 2015.
DOI : 10.1007/s11356-014-3169-0

URL : https://hal.archives-ouvertes.fr/hal-01937513

C. Grison, V. Escande, E. Petit, L. Garoux, C. Boulanger et al., Psychotriadouarrei and Geissois pruinosa, novel resources for the plant-based catalytic chemistry, RSC Advances, vol.12, issue.2, 2013.
DOI : 10.3390/12071341

C. M. Grison, M. Mazel, A. Sellini, V. Escande, J. Biton et al., The leguminous species Anthyllis vulneraria as a Zn-hyperaccumulator and eco-Zn catalyst resources, Environmental Science and Pollution Research, vol.50, issue.8, pp.5667-5676, 2015.
DOI : 10.1016/S0045-6535(02)00232-1

URL : https://hal.archives-ouvertes.fr/hal-01937588

P. J. Harrington, Pharmaceutical Process Chemistry for Synthesis: Rethinkingnthe Routes to Scale-Up, 2011.
DOI : 10.1002/9780470909775

S. Huguet, V. Bert, A. Laboudigue, V. Barthès, M. Isaure et al., Cd speciation and localization in the hyperaccumulator Arabidopsis halleri, Environmental and Experimental Botany, vol.82, pp.54-65, 2012.
DOI : 10.1016/j.envexpbot.2012.03.011

URL : https://hal.archives-ouvertes.fr/hal-00754989

A. Hunt, Element Recovery and Sustainability, 2013.
DOI : 10.1039/9781849737340

A. J. Hunt, A. S. Matharu, A. H. King, C. , and J. H. , The importance of elemental sustainability and critical element recovery, Green Chemistry, vol.51, issue.4, 1949.
DOI : 10.1016/j.cep.2011.09.008

W. B. Jensen, The Lewis Acid-Base Concepts: An Overview, 1980.

C. Jung and M. Osako, Metal resource potential of residues from municipal solid waste (MSW) melting plants, Resources, Conservation and Recycling, vol.53, issue.6, 2009.
DOI : 10.1016/j.resconrec.2009.01.004

P. Kidd, M. Mench, V. Álvarez-lópez, V. Bert, I. Dimitriou et al., Agronomic Practices for Improving Gentle Remediation of Trace Element-Contaminated Soils, International Journal of Phytoremediation, vol.159, issue.11, pp.1005-1037, 2015.
DOI : 10.1016/j.scitotenv.2006.09.028

URL : https://hal.archives-ouvertes.fr/ineris-01855136

W. Lai, J. Yao, S. Shaik, C. , and H. , Which Density Functional Is the Best in Computing C???H Activation Energies by Pincer Complexes of Late Platinum Group Metals?, Journal of Chemical Theory and Computation, vol.8, issue.9, pp.2991-2996, 2012.
DOI : 10.1021/ct3005936

Z. Li, X. Chen, Y. Fu, W. Wang, and M. Luo, A facile synthesis of trisubstituted alkenes from ??-diketones and aldehydes with AlCl3 as catalyst, Research on Chemical Intermediates, vol.42, issue.135, pp.25-35, 2012.
DOI : 10.1016/S0040-4039(00)01930-4

G. Losfeld, R. Mathieu, L. L-'huillier, B. Fogliani, T. Jaffré et al., Phytoextraction from mine spoils: insights from New Caledonia, Environmental Science and Pollution Research, vol.21, issue.8, pp.5608-5619, 2015.
DOI : 10.1080/0735-260291044304

URL : https://hal.archives-ouvertes.fr/hal-01898277

A. Massa, L. Capozzolo, and A. Scettri, Abstract, Open Chemistry, vol.64, issue.6, pp.1210-1215, 2010.
DOI : 10.1021/ja035448p

R. S. Mulliken, Electronic Population Analysis on LCAO???MO Molecular Wave Functions. I, The Journal of Chemical Physics, vol.207, issue.10, pp.1833-1840, 1955.
DOI : 10.1063/1.1747438

E. Parry, An infrared study of pyridine adsorbed on acidic solids. Characterization of surface acidity, Journal of Catalysis, vol.2, issue.5, pp.371-379, 1963.
DOI : 10.1016/0021-9517(63)90102-7

R. G. Pearson, Hard and soft acids and bases, HSAB, part 1: Fundamental principles, Journal of Chemical Education, vol.45, issue.9, pp.581-591, 1968.
DOI : 10.1021/ed045p581

R. G. Pearson, Chemical hardness and density functional theory, Journal of Chemical Sciences, vol.117, issue.5, pp.369-377, 2005.
DOI : 10.1002/3527606173

A. Poddar, S. C. Gedam, and S. J. Dhoble, Synthesis of KMgCl3 nanomaterial and luminescence of Ce3+/Dy3+/Eu3+ by different routes, Journal of Luminescence, vol.158, pp.188-196, 2015.
DOI : 10.1016/j.jlumin.2014.09.049

S. Rao, P. Venkataratnam, and R. V. , Zinc chloride as a new catalyst for knoevenagel condensation, Tetrahedron Lett, vol.32, issue.00, pp.5821-5822, 1991.

V. Staemmler, The donor-acceptor approach to molecular interactions, 1979.

V. Von and . Gutmann, , 1978.

, Angew. Chem, vol.91, pp.595-595

Y. Thillier, G. Losfeld, V. Escande, C. Dupouy, J. Vasseur et al., Metallophyte wastes and polymetallic catalysis: a promising combination in green chemistry. The illustrative synthesis of 5???-capped RNA, RSC Advances, vol.9, issue.15, 2013.
DOI : 10.1039/c1ob06041d

URL : https://hal.archives-ouvertes.fr/hal-00805661

R. Adv, A. Baker, A. J. Reeves, R. D. Pollard, A. J. Schat et al., Hyperaccumulators of metal and metalloid trace elements: facts and fiction, Plant Soil, vol.3, issue.362, pp.5204-5212, 2013.

R. Vardanyan and V. Hruby, Synthesis of Best-Seller Drugs, 2016.

J. S. Yadav, D. C. Bhunia, V. K. Singh, and P. Srihari, Solvent-free NbCl5 catalyzed condensation of 1,3-dicarbonyl compounds and aldehydes: a facile synthesis of trisubstituted alkenes, Tetrahedron Letters, vol.50, issue.21, pp.2470-2473, 2009.
DOI : 10.1016/j.tetlet.2009.03.015

M. I. Zaki, M. A. Hasan, F. A. Al-sagheer, and L. Pasupulety, In situ FTIR spectra of pyridine adsorbed on SiO2???Al2O3, TiO2, ZrO2 and CeO2: general considerations for the identification of acid sites on surfaces of finely divided metal oxides, Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.190, issue.3, pp.261-274, 2001.
DOI : 10.1016/S0927-7757(01)00690-2

, Conflict of Interest Statement: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest