Chiral Alcohols
The Ability of Edible Mushrooms to Act as Biocatalysts: Preparation of Chiral Alcohols Using Basidiomycete Strains
... exhaustion of the earth’s resources. Therefore, the effec- tive use of resources is an important focus of research. In the interest of the effective use of resources and envi- ronmental protection, we investigated an ...
6
Stereoselective reduction of prochiral ketones by plant and microbial biocatalysts
... of microorganisms over plants in the bioreduction of prochiral ketones. This may be attributed to the presence of more dehydrogenases in microbes than in plants. However, in some cases and in the production of a special ...
7
BIOCATALYTIC REDUCTION OF IMIDAZOL 2 ONES AND PYRIMIDIN 2 ONES MEDIATED BY LYCOPERSICUM ESCULENTUM L (TOMATO)
... of chiral secondary alcohols using biocatalysts obtained from microbial/different parts of plant ...asymmetric alcohols of biological ...of chiral alcohols of biological importance ...
9
Asymmetric Bioreduction of Prochiral Ketones Catalyzed by Cynara Scolumus L, Terfezia Sp and Phoenix DactyliferaL
... Fresh Cynara scolumus L., Terfezia sp and Phoenix dactylifer L. were obtained from a local market. Terfezia sp grows in the disert (south of Algeria): Laghouat, El-Beith, Ghardia and Ouargla; Phoenix dactylifer L. was ...
8
Asymmetric Reduction of Heteroaryl Methyl Ketones Using Daucus carota
... suppressants. Chiral heteroaryl alcohols have numerous applications as important intermediates in the synthesis of biological active molecules and also act as chiral li- gands/auxiliaries in a number ...
6
Asymmetric synthesis using sulfimides
... Solladie has extensively utilised a-functionalised methyl sulfoxides such as 40 in various asymmetric syntheses to prepare, for example, chiral alcohols with good enantioselectivities Sc[r] ...
240
Extreme halophilic alcohol dehydrogenase mediated highly efficient syntheses of enantiopure aromatic alcohols
... alcohols which have been described in the literature. For instance, alcohol dehydrogenase from Ralstonia sp. (RasADH) catalyzed the reduction of aromatic ketones containing bulky substituents with high ...
11
Bioreductive preparation of ACE inhibitors precursor (R)-2-hydroxy-4-phenylbutanoate esters: Recent advances and future perspectives
... secondary alcohols, especially hydroxyl acids or hydroxyl acid esters, are important compounds for introducing chiral elements to pharmaceuticals, agri- cultural pesticides, and other fine chemicals ...of ...
11
Characterization of a Novel Pseudomonas stutzeri Lipase/Esterase with Potential Application in the Production of Chiral Secondary Alcohols
... Here we describe the identification of a new, until now undescribed, lipase/esterase through a mere database screening. Within the genome from Pseudomonas stutzeri strain A1501 a putative lipase of unknown function was ...
10
Applications of enzymes to the preparation of optically active compounds
... The in v estig atio n s described in chapters 2 and 3 w ere directed tow ards the resolution o f chiral secondary alcohols. In this section the aim o f the work described was to resolve a c h ira l acid, ...
272
Pathways to Equity: An Auto-Ethnographic and Narrative Study of Teacher Educator and Preservice Teachers in a One-Credit Course and Community-Based Field Experience
... a chiral ligand attached to the center atom o a propeller to orce a single con ormation o the ar l rings has een tested e ...o chiral alcohols were derivatized with a trit l ether protecting ...the ...
305
Liquid Etherification of Alkoxybenzyl Alcohols, Cinnamyl Alcohols and Fluorinated Phenylalkenols with Platinum on Carbon (Pt/C) and Palladium on Carbon (Pd/C)
... 4-alkoxyphenylalkyl alcohols 7over Pt/C and ...corresponding alcohols by acid catalyzed etherification ...corresponding alcohols in DMSO at 175˚C (see above) ...
21
Electromagnetic Response of a Circular dB Cylinder in the Presence of Chiral and Chiral Nihility Metamaterials
... isotropic chiral medium. Qiu et al. [11] discussed chiral nihility effects on energy flow in chiral ...in chiral nihility ...containing chiral nihility ...in chiral nihility ...
14
SYNTHESIS OF ANTITUMOR AGENTS FROM NATURAL PRODUCT LEADS
... The ever-increasing importance of the role of carbohydrates in biological processes relating to immunology, virology, cancer, antibiotic action, and a host of life- threatening diseases has heightened the interest in the ...
10
Symmetries and in-medium effects: Chiral symmetry breaking and modification of meson properties in a strongly interacting medium
... If chiral symmetry were to hold, chiral partners, ...left, chiral partners in the excita- tion energy spectrum of the nucleon or scalar and vector mesons show mass splits almost comparable to their ...
6
Chiral imbalance in QCD
... baryon number (chiral imbalance). Therefrom it follows that in the chiral limit and for a finite fireball volume the axial quark current is conserved in the presence of non-zero topological charge. If for the ...
7
Evaluation of the Effects of Alcohol on De Emulsification of Niger Delta Crude Oil Using Commercial De Emulsifiers
... This research work evaluates the effects of alcohol on de-emulsification of Niger Delta crude oil using RP6000 and Chimec 2439 as de-emulsifiers. The laboratory measurements were carried out as per API standard. Stable ...
9
Chiral Brønsted acid catalyzed enantioselective dehydrative Nazarov type electrocyclization of aryl and 2 Thienyl vinyl alcohols
... the chiral catalyst can ad- ditionally participate in hydrogen bonding ...the chiral Brønsted acid anion now occupying one face of the substrate cation as a result, this might then allow asymmetric ...
9
Rapid access of some rare chiral azides from sterically hindered alcohols by green chemistry protocol
... Several other spectroscopic data were taken which proved unambiguous settlement of azides in the place of -OH. By this simple and one subtle step we have synthesized ten different sterically hindered azides with good to ...
9
13c Methoxy 1,2,3,13c tetrahydrodibenzo[a,kl]xanthan 1 one
... condensation, and resolution of racemic compounds. (Aldous et al. , 2000; Kawamoto & Wills, 2000; Hashihayata et al. , 1997; Dai et al. , 2000; Enders & Ullrich, 2000). The title compound, (I), is a key ...
9