Results 21 to 30 of about 42,748,142 (121)

Enantioenriched Quaternary α-Pentafluoroethyl Derivatives of Alkyl 1-Indanone-2-Carboxylates [PDF]

, 2020
An electrophilic enantioselective catalytic method for the a-pentafluoroethylation of alkyl 1-indanone-2-carboxylates is described. Under the use of La(OTf)3 in combination with (S,R)-indanyl-pybox ligand good results in terms of yield and ...
Adelina Vallribera (8688678), Anna, Balleteros, Albert, Granados, Anna Balleteros (8692299), Albert Granados (8692297), Adelina, Vallribera   +5 more
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Highly Enantioselective Photocyclization of 1-Alkyl-2-pyridones to β-Lactams in Inclusion Crystals with Optically Active Host Compounds

, 2016
Upon photoirradiation of a 1:1 inclusion complex of (−)-3 and 2-alkyl-1-pyridone (1) (R = Et, n-Pr, i-Pr, n-Bu, i-Bu) in the solid state, optically active β-lactams (2) of 91−99.5% ee were obtained in good ...
Koichi Tanaka (69625), Zofia Urbanczyk-Lipkowska (1528807), Takashi Fujiwara (540225)   +2 more
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Expressão, purificação e caracterização bioquímica de lipase recombinante de Staphylococcus xylosus e esterase recombinante de Lactobacillus plantarum [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-graduação em Ciência dos Alimentos, Florianópolis, 2010Esterases e lipases pertencem ao grupo das hidrolases e são enzimas que catalisam a clivagem e ...
Brod, Fábio Cristiano Angonesi
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Water-Promoted Regiospecific Azidolysis and Copper-Catalyzed Azide–Alkyne Cycloaddition: One-Pot Synthesis of 3‑Hydroxy-1-alkyl-3-[(4-aryl/alkyl‑1H‑1,2,3-triazol-1-yl)methyl]indolin-2-ones

, 2016
An efficient, eco-friendly, base free, one-pot, sequential protocol was developed for epoxide azidolysis and copper-catalyzed azide–alkyne cycloaddition using water as the solvent for the synthesis of 3-hydroxy-1-alkyl-3-[(4-aryl/alkyl-1H-1,2,3-triazol-1-
Kapil Kumar (3186432), Debabrata Konar (3186435), Ravindra K. Rawal (3186429), Sandeep Goyal (2036434), Vipin A. Nair (3186441), Mangilal Chouhan (1930540), Mukesh Gangar (3186438)   +6 more
core   +1 more source

Regioselective Asymmetric Alkynylation of N–Alkyl Pyridiniums [PDF]

, 2021
Disclosed in this communication is a novel asymmetric addition of alkynyl nucleophiles to N-alkyl pyridinium electrophiles. The coupling is effected under mild and simple reaction conditions, affording dihydropyridine products with complete regiochemical
Thiago A., Grigolo, Joel, Smith, Ariana R., Subhit   +2 more
core   +1 more source

A carboxylesterase, Esterase-6, modulates sensory physiological and behavioural response dynamics to pheromone in Drosophila [PDF]

, 2012
Background: Insects respond to the spatial and temporal dynamics of a pheromone plume, which implies not only a strong response to"odor on", but also to"odor off". This requires mechanisms geared toward a fast signal termination.
Rosell Pellisé, Glòria, Chertemps, Thomas, Rosell, Gloria, Dekker Teun, Durand, Nicolas, Philippe Lucas, Maibeche Coisne, Martine, Nicolas Durand, Nicolas Dur, Maïbèche-Coisne, Martine, Lucas, Philippe, François Adrien, Thomas Chertemps, Maïbèche-Coisne Martine, Adrien François, Durand Nicolas, Dekker, Teun, Rosell Gloria, Teun Dekker, Chertemps Thomas, Martine Maïbèche-Coisne, Lucas Philippe, François, Adrien, Gloria Rosell, Sveriges lantbruksuniversitet., Dekker, Teun,   +25 more
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The feruloyl esterase system of Talaromyces stipitatus: Determining the hydrolytic and synthetic specificity of TsFaeC

, 2006
The active site of the recombinant Talaromyces stipitatus type-C feruloyl esterase (TsFaeC) was probed using a series of C-1-C-4 alkyl ferulates and methyl esters of phenylalkanoic and cinnamic acids.
Vafiadi, C, Christakopoulos, P, Christakopoulos, Paul, Topakas, E, Faulds, Craig B.,, Topakas, Evangelos,, Vafiadi, Christina,, Faulds, CB   +7 more
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Table1_Rhodobacter sphaeroides as a model to study the ecotoxicity of 1-alkyl-3-methylimidazolium bromide.DOCX

, 2023
The purple non-sulfur bacterium Rhodobacter sphaeroides was selected as a biological model to investigate its response to the toxicity of 1-alkyl-3-methylimidazolium bromide ([Cnmim]Br), a type of ionic liquid (IL), with different alkyl chain lengths (n ...
Yang-Lin Jiang (8918282), Ze-Jun Wang (665059), Ming-Qing Chen (14519360), Rong-Yao Gao (14101991), Xiao-Lin Liu (559916), Peng Wang (34436)   +5 more
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Production of an esterase from Fusarium oxysporum catalysing transesterification reactions in organic solvents

, 1998
The production of an esterase by Fusarium oxysporum, grown on tomato skins as the sole carbon source, was studied in submerged and solid state cultures. Under optimum growth conditions, enzyme yields as high as 7·3 U/ml of culture medium and 19·4 U/g of ...
Mamma, D, Tzalas, B.,, Macris, B.J.,, Kolisis, F.N.,, Stamatis, H, Stamatis, H.,, Kolisis, FN, Kekos, D, Mamma, D.,, Christakopoulos, P, Liadakis, GN, Christakopoulos, Paul, Kekos, D.,, Tzalas, B, Macris, BJ, Tzia, C.,, Tzia, C, Liadakis, G.N.,   +17 more
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Esterase-Sensitive Glutathione Persulfide Donor

, 2018
An esterase-sensitive glutathione persulfide (GSSH) donor (BW-GP-401) is described. The release profile was studied by monitoring the formation of lactone and direct trapping of GSSH with 1-fluoro-2,4-dinitrobenzene (DNFB). The donor was examined for its
Yueqin Zheng (4671847), Yueqin Zheng, Zhengnan Yuan, Siming Wang (69475), Binghe Wang, Zhengnan Yuan (4671841), Binghe Wang (69478), Bingchen Yu, Xiaoxiao Yang (3800128), Siming Wang, Xiaoxiao Yang, Bingchen Yu (1589599)   +11 more
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