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Direct Catalytic Enantioselective Aza-Diels-Alder Reactions
Henrik Sundén 1, Ismail Ibrahem 1, Lars Eriksson, Prof. Dr. 2, Armando Córdova, Prof. Dr
Angewandte Chemie International Edition Vol 44, P. 4877 - 4880

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http://dx.doi.org/10.1002/anie.200500811

Amine-catalyzed direct self Diels–Alder reactions of α,β-unsaturated ketones in water: synthesis of pro-chiral cyclohexanones.
D.B. Ramacharya, Naidu S. Chowdaria and Carlos F. Barbas II
Tetrahedron Letters Vol 43, Issue 38, P 6743-6746

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http://dx.doi.org/10.1016/S0040-4039(02)01500-9  

Amine-catalyzed direct Diels–Alder reactions of α,β-unsaturated ketones with nitro olefins
Rajeswari Thayumanavan, Buchiramachary Dhevalapally, Kandasamy Sakthivel, Fujie Tanaka, Carlos F Barbas III
Tetrahedron Letters, Volume 43, Issue 21, Pages 3817-3820

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http://dx.doi.org/10.1016/S0040-4039(02)00686-X 

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