Pouteria sapota hydroxynitrile lyase catalyzed synthesis of optically active cyanohydrins from ortho-substituted benzaldehydes

Martínez-Casares, Rubria M.; Pérez, HerminiaI; Manjarrez, Norberto; Solís-Oba, Myrna; Ortega, Lucía; Solı́s, Aida

doi:10.1016/j.indcrop.2020.112606

Cited by 4 publications

(2 citation statements)

References 47 publications

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“…A HNL from Pouteria sapota , ( Ps HNL) used in crude form catalyzed the synthesis of seven different ( R )‐cyanohydrins from their corresponding o ‐substituted benzaldehydes (Scheme 4). [28] The enantiopurity of the cyanohydrins ranged from 82 to 100 %, while the % conv. was from 56 to 100 under optimized biphasic conditions.…”

Section: Synthetic Scope Of Newly Discovered Hnlsmentioning

confidence: 99%

Hydroxynitrile Lyase Discovery, Engineering, and Promiscuity towards Asymmetric Synthesis: Recent Progress

Priya,

Padhi

2023

Eur J Org Chem

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Hydroxynitrile lyases (HNLs) primarily catalyze the stereoselective synthesis of cyanohydrins, but some of them also carry out asymmetric nitroaldol synthesis (Henry reaction). By virtue of the importance of asymmetric C‐C bond formation, and the wide application of chiral cyanohydrins and β‐nitroalcohols, HNLs have gained significance in organic synthesis. Over the years new HNLs have been discovered and their synthetic scope are evaluated. Engineering of HNLs has contributed towards increasing not only the catalytic toolbox but also broad substrate selectivity, stereoselectivity, enzyme stability and application of the enzymes for different transformations other than the conventional ones. This review describes the recent discoveries of diverse hydroxynitrile lyases, and the developments to date since 2016, with respect to their biocatalytic applications in the asymmetric synthesis using both natural and promiscuous reactions.

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Section: Synthetic Scope Of Newly Discovered Hnlsmentioning

confidence: 99%

Hydroxynitrile Lyase Discovery, Engineering, and Promiscuity towards Asymmetric Synthesis: Recent Progress

Priya,

Padhi

2023

Eur J Org Chem

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“…Mamey sapote [Pouteria sapota] is a very popular fruit growing in Mexico and Central America [21]. It is a fruit tree that has the potential to be cultivated in 15 of 32 states, i.e., over almost 50 % of the Mexican territory.…”

Section: Introductionmentioning

confidence: 99%

Pouteria sapota as green CO2-corrosion inhibition of carbon steel

Salinas-Solano

Porcayo-Calderón

Larios-Galvez

2022

J. Electrochem. Sci. Eng.

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Imidazoline obtained from the essential oil contained in Pouteria sapota seed was tested as an environmentally-friendly corrosion inhibitor of 1018 carbon steel in CO2 saturated 3.5 % NaCl solution using electrochemical techniques. This imidazoline contains fatty acids with the presence of long hydrophobic chains, with 52.73 % of unsaturated (oleic and linolenic acids) and 40 % of saturated (palmitic and myristic acids) compounds. Polarization curves revealed that this inhibitor is highly efficient mixed-type of inhibitor with the inhibitor efficiency of 99.9 % reached at 25 ppm. Also, the lowest pitting potential value was observed at 25 ppm of inhibitor, making the carbon steel highly susceptible to the pitting type of corrosion. Corrosion current density value decreased by nearly four orders of magnitude, and a passive film formation was induced for inhibitor concentrations higher than 5 ppm. Accordingly, polarization resistance values were increased from 100 W cm2 up to about 106 W cm2 at 25 ppm of inhibitor. The inhibitor forms a protective film of corrosion products adsorbed on the metal surface in a very strong chemical way, following a Langmuir type of adsorption isotherm. This was supported by electrochemical impedance spectra that showed two relaxation processes ascribed to electrode interface and film regions. In agreement with polarization resistance data, the total electrode resistance determined by interfacial charge transfer and film resistance, increased up to 8.2 ´ 105 W cm2 in presence of 25 ppm of inhibitor. SEM images additionally showed that type of corrosion was fully changed from uniform to a localized type when 25 ppm of inhibitor was added into the solution.

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Agro-industrial residue of Pouteria sapota peels as a green heterogeneous catalyst to produce biodiesel from soybean and sunflower oils

Aleman-Ramirez,

Okoye,

Pal

et al. 2024

Renewable Energy

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Pouteria sapota hydroxynitrile lyase catalyzed synthesis of optically active cyanohydrins from ortho-substituted benzaldehydes

Cited by 4 publications

References 47 publications

Hydroxynitrile Lyase Discovery, Engineering, and Promiscuity towards Asymmetric Synthesis: Recent Progress

Hydroxynitrile Lyase Discovery, Engineering, and Promiscuity towards Asymmetric Synthesis: Recent Progress

Pouteria sapota as green CO2-corrosion inhibition of carbon steel

Agro-industrial residue of Pouteria sapota peels as a green heterogeneous catalyst to produce biodiesel from soybean and sunflower oils

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