Psychotriadouarrei and Geissois pruinosa, novel resources for the plant-based catalytic chemistry

Grison, Claire M.; Escande, Vincent; Petit, Eddy; Garoux, Laetitia; Boulanger, Clotilde; Grison, Claude

doi:10.1039/c3ra43995j

Cited by 43 publications

(36 citation statements)

References 27 publications

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“…There are also plants called hypernickelophores, which accumulate >10,000 mg N kg -1 , e.g. Psychotria douarrei and Geissois pruinosa (GrisoN et al 2013).…”

Section: Pythoremediation and Phytominingmentioning

confidence: 99%

Nickel in the environment

Harasim

Filipek

2015

J. Elem.

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The importance of nickel (Ni) in the environment is an issue that is gaining broader recognition. While nickel is an element essential for plants, it is also a heavy metal. Nickel is a component of nine metalloenzymes, including urease, which participates in urea hydrolysis. It also helps some plants to protect themselves against pathogens and herbivorous insects. There are many sources of Ni in the environment, which can be a problem because at higher concentrations this element is toxic to plants and other living organisms. Therefore, standards have been defined for the Ni content in air, water, soil and plants. Its content is monitored in the air. More and more frequently, attention is paid to this element as an allergen in humans. In the world, attempts have been made to phytoextract nickel from contaminated soils using nickelphilous plants, the so-called hyperaccumulators, and even to recover the metal from these plants by so-called phytomining. On the other hand, nickel-containing fertilizers are marketed and used in cases of nickel deficiency in plants. In industry, this element is primarily used for the production of steel and alloys. The most recent application of nickel is related to graphene, which was invented 10 years ago. Although nickel contamination does not occur in Poland, we cannot rule out this risk in the future. Thus, it is important to monitor the fate of nickel in the environment.

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“…There are also plants called hypernickelophores, which accumulate >10,000 mg N kg -1 , e.g. Psychotria douarrei and Geissois pruinosa (GrisoN et al 2013).…”

Section: Pythoremediation and Phytominingmentioning

confidence: 99%

Nickel in the environment

Harasim

Filipek

2015

J. Elem.

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“…Ecocatalysts can be used as heterogeneous catalysts in synthetic transformations allowing access to molecules with a high added-value for the production of fine chemicals and in scalable processes. [28,29] Among the different ecocatalysts prepared to date, Eco-Mn catalysts have two major properties: [14,30] a hard and marked Lewis acidity or/ and an oxidative activity allowing the replacement of oxidants prohibited by REACH regulation (Registration, Evaluation, Authorization and Restriction of Chemicals) (European Commission 2006). [31] These interesting properties are specific to Eco-Mn catalysts and are the consequence of a particular structure of these materials.…”

Section: Introductionmentioning

confidence: 99%

Eco‐Mn Ecocatalysts: Toolbox for Sustainable and Green Lewis Acid Catalysis and Oxidation Reactions

et al. 2020

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Phytoextraction is one of the most promising phytotechnologies used to restore natural environments degraded by mining activities. In New Caledonia, a few plant species, which belong to the Grevillea genus, have the ability to extract Mn from soil and accumulate it in abundance (over 1 % of leaves dry weight). This review describes the use of Grevillea Mn‐accumulating plant species to produce the first bio‐sourced Mn catalysts, called Eco‐Mn catalysts. Extensive structural studies of Eco‐Mn catalysts have highlighted an original composition characteristic of their vegetal origin. Eco‐Mn catalysts have demonstrated competitive catalytic activities compared to conventional Mn catalysts in Lewis acid catalysis, aminoreductions, alcohol oxidations, epoxidation reactions, oxidative cleavage of 1,2‐diols and alkenes and “Janus catalysts” for sequential tandem oxidations such as tandem carbonyl‐ene cyclisation, synthesis of substituted pyridines and oxidative iodination of ketones.

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“…The concept is based on the pioneering idea that metallic wastes recycled from hyperaccumulating plants can be used for the production of green, bioinspired pesticides. Our group already established a new concept that the biomass from phytoextraction can receive a new value, thanks to its transformation into ecocatalysts for the synthesis of organic molecules (Escande et al 2014a, b, c;Grison et al 2013;Losfeld et al 2012a, b, c;Thillier et al 2013). In this paper, we planned to study the use of these ecocatalysts for the synthesis of green pesticides, reinforcing the ecological interest of the technology.…”

Section: Introductionmentioning

confidence: 94%

Ecocatalysis for 2H-chromenes synthesis: an integrated approach for phytomanagement of polluted ecosystems

Escande¹,

Velati²,

Grison³

2014

Environ Sci Pollut Res

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A direct, general and efficient method to synthesize 2H-chromenes (2H-benzo[b]pyrans), identified as environmentally friendly pesticides, has been developed. This approach lays on the new concept of ecocatalysis, which involves the use of biomass from phytoextraction processes, as a valuable source of metallic elements for chemical synthesis. This methodology is similar or superior to known methods, affording 2H-chromenes with good to excellent yields (60-98%), including the preparation of precocene I, a natural insect growth regulator, with 91% yield. The approach is ideal for poor reactive substrates such as phenol or naphthol, classically transformed into 2H-chromenes by methodologies associated with environmental issues. These results illustrate the interest of combining phytoextraction and green synthesis of natural insecticides.

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Psychotriadouarrei and Geissois pruinosa, novel resources for the plant-based catalytic chemistry

Cited by 43 publications

References 27 publications

Nickel in the environment

Nickel in the environment

Eco‐Mn Ecocatalysts: Toolbox for Sustainable and Green Lewis Acid Catalysis and Oxidation Reactions

Ecocatalysis for 2H-chromenes synthesis: an integrated approach for phytomanagement of polluted ecosystems

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