These amino-cinchonnane compounds behave as pseudoenantiomers, generally granting access to both enantiomers of a given transformation. Technical notes: 1. [2+3]-dipolar cycloaddition of cyclic enones. 2. (-activation of α,β-unsaturated carbonyl groups. a.) vinylogous α-ketol rearrangement. b.) vinylogous Michael addition of β-substituted α,β-unsaturated cyclohexanones. c.) Formal (-alkylation by SN1 reaction of diarylmethanol with α-branched aldehydes. 3. Michael addition a.) α-nitroacetate to α,β-unsaturated ketones. b.) Diastereodivergent Michael addition to α-substituted, α,β-unsaturated ketones. 4. α-benzoyloxylation of α-branched aldehydes. 5. [4+2]-cycloadditions of β-substituted α,β-unsaturated cyclohexanones with polyconjugated mal...
Three novel subclasses of cinchonidine derivatives coupled to diverse amino acids were prepared in v...
The thesis has been divided in two chapters: Chapter I describes the preparation of primary-amine mo...
Cinchona alkaloids comprising quinine, quinidine, cinchonidine and cinchonine as the major members c...
Pripravljena je knjižnica od 72 derivata kvazienantiomera cinhonidina i cinhonina. Redukcijom viniln...
Modulation of the complex reactivity of cyclohexenylidene malononitriles using diverse β-aryl-substi...
Modulation of the complex reactivity of cyclohexenylidene malononitriles using diverse \u3b2-aryl-su...
Cinchona alkaloid-derived chiral catalysts represent one of the most widely applied classes of organ...
Modulation of the complex reactivity of cyclohexenylidene malononitriles using diverse beta-aryl-sub...
Note: Sold in collaboration with Nagase for research purposes only. US Patent 6,340,753. Technical ...
A practical synthesis of both enantiomers of unnatural phenylalanine derivatives by using two pseudo...
It is demonstrated that two organocatalysts, achiral NHC and chiral bifunctional cinchonine, are mut...
An efficient and convenient highly enantioselective Michael addition of malononitrile to enones ha...
A new asymmetric synthesis of 2-substituted chiral chromanes has been achieved. The key step is the ...
This thesis describes the conjugate addition of nitrogen nucelophiles to alpha,beta-unsaturated enon...
THESIS 10151Over the past three decades, the synthesis of enantiomerically pure products became a ma...
Three novel subclasses of cinchonidine derivatives coupled to diverse amino acids were prepared in v...
The thesis has been divided in two chapters: Chapter I describes the preparation of primary-amine mo...
Cinchona alkaloids comprising quinine, quinidine, cinchonidine and cinchonine as the major members c...
Pripravljena je knjižnica od 72 derivata kvazienantiomera cinhonidina i cinhonina. Redukcijom viniln...
Modulation of the complex reactivity of cyclohexenylidene malononitriles using diverse β-aryl-substi...
Modulation of the complex reactivity of cyclohexenylidene malononitriles using diverse \u3b2-aryl-su...
Cinchona alkaloid-derived chiral catalysts represent one of the most widely applied classes of organ...
Modulation of the complex reactivity of cyclohexenylidene malononitriles using diverse beta-aryl-sub...
Note: Sold in collaboration with Nagase for research purposes only. US Patent 6,340,753. Technical ...
A practical synthesis of both enantiomers of unnatural phenylalanine derivatives by using two pseudo...
It is demonstrated that two organocatalysts, achiral NHC and chiral bifunctional cinchonine, are mut...
An efficient and convenient highly enantioselective Michael addition of malononitrile to enones ha...
A new asymmetric synthesis of 2-substituted chiral chromanes has been achieved. The key step is the ...
This thesis describes the conjugate addition of nitrogen nucelophiles to alpha,beta-unsaturated enon...
THESIS 10151Over the past three decades, the synthesis of enantiomerically pure products became a ma...
Three novel subclasses of cinchonidine derivatives coupled to diverse amino acids were prepared in v...
The thesis has been divided in two chapters: Chapter I describes the preparation of primary-amine mo...
Cinchona alkaloids comprising quinine, quinidine, cinchonidine and cinchonine as the major members c...