Results 241 to 250 of about 32,089 (279)

Enantioselective Synthesis of Phenylpropanetriols

Synthetic Communications, 1998
Abstract The four stereomer 1-(4-hydroxy-3-methoxy)-phenyl-1,2,3-propanetriols were obtained in about 30% yields starting from ferulic acid by a synthesis based on osmium catalyzed asymmetric dihydroxylation.
DELLA GRECA M, FIORENTINO, Antonio, MONACO, Pietro, PREVITERA L.   +3 more
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Enantioselective Synthesis of Arglabin

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Srinivas, Kalidindi, Won Boo, Jeong, Andreas, Schall, Rakeshwar, Bandichhor, Bernd, Nosse, Oliver, Reiser   +5 more
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Enantioselective synthesis of aminobenzazepinones

Tetrahedron Letters, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
C. V. C. Prasad, Stepen E. Mercer, Gene M. Dubowchik, John E. Macor   +3 more
openaire   +1 more source

Enantioselective metabolism of cumene

Xenobiotica, 1992
1. The enantioselective metabolism of cumene (isopropylbenzene) was studied in intact rabbits. 2. Of the total 2-phenyl-1-propanol formed metabolically, 90.3% was shown by h.p.l.c. to be (R)-(+)-2-phenyl-1-propanol. The corresponding values for (S)-(+)-2-phenylpropanoic acid and (R)-(-)-2-hydroxy-2-phenylpropanoic acid were 99.0 and 81.0%, respectively.
T, Ishida, T, Matsumoto
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Enantioselective synthesis of levomilnacipran

Chemical Communications, 2012
A novel approach for the asymmetric synthesis of the active (1S,2R)-enantiomer of the antidepressant milnacipran is reported. The two stereogenic centers borne by the cyclopropane ring were sequentially installed starting from phenylacetic acid.
Julien, Alliot, Edmond, Gravel, Florence, Pillon, David-Alexandre, Buisson, Marc, Nicolas, Eric, Doris   +5 more
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Enantioselective Halogenation Reactions

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Hasim Ibrahim, Antonio Togni
openaire   +1 more source

Enantioselective Hydrogenation of Ketopantolactone

Journal of Catalysis, 1997
The enantioselective hydrogenation of ketopantolactone toR-(−)-pantolactone was investigated on 5 wt% Pt/Al2O3chirally modified with cinchonidine. The influence of catalyst pretreatment conditions, hydrogen pressure, temperature, solvent polarity, and catalyst, reactant, and modifier concentrations was studied in a slurry reactor.
Schürch, Markus, Schwalm, Olivier, Mallat, T., Weber, Jacques, Baiker, Alfons   +4 more
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Enantioselective Radical Processes

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Mukund P, Sibi, Shankar, Manyem, Jake, Zimmerman   +2 more
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An enantioselective approach to (+)-laurencin

Organic & Biomolecular Chemistry, 2008
A convergent enantioselective route to an advanced intermediate for the synthesis of the marine natural product (+)-laurencin has been developed. The methodology employs ring-opening of an ephedrine-based spiro-epoxide with a chiral secondary alcohol, hemiacetal allylation and ring closing metathesis as the key steps for elaboration of the ...
Vikrant A, Adsool, Sunil V, Pansare
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Enantioselective

Angewandte Chemie (International ed. in English)
Even with only a catalytic amount of chiral bis(dihydrooxazole) 1 as external ligand, the rearrangement of benzyl ethers to alcohols [Eq. (1)] proceeds with high enantioselectivity (over 60 % ee). This reaction represents the first example of an enantioselective [1,2] Wittig rearrangement.
, Tomooka, , Yamamoto, , Nakai
openaire   +1 more source