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2. Enantioselective Organocatalytic Cyclopropanation of Enals Using Benzyl Chlorides

Author

Jung Woon Yang, Andrea Mazzanti, Ramon Rios, Marta Meazza, Maria Ashe, Hun Yi Shin, Hye Sung Yang, Meazza, Marta, Ashe, Maria, Shin, Hun Yi, Yang, Hye Sung, Mazzanti, Andrea, Yang, Jung Woon, and Rios, Ramon

Subjects
010405 organic chemistry, Cyclopropanation, Organic Chemistry, Enantioselective synthesis, Absolute configuration, Cyclopopanation, organocatalysis, absolute configuration, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Cyclopropane, chemistry.chemical_compound, chemistry, Nucleophile, Organocatalysis, Electrophile, Organic chemistry, Bifunctional
Abstract

Herein, we describe the first enantioselective cyclopropanation of enals using benzyl chlorides as bifunctional (nucleophilic and electrophilic) reagents. The reaction is simply catalyzed by chiral secondary amines to afford the formyl cyclopropane derivatives in good yields with moderate to excellent stereoselectivities.

Published
2016

4. Back Cover: Ceria Nanoparticles that can Protect against Ischemic Stroke (Angew. Chem. Int. Ed. 44/2012)

Author

Taeho Kim, Taeghwan Hyeon, Hye-Sung Yang, Hyunduk Jang, Jun Yup Kim, Young Ju Kim, Chi Kyung Kim, Taekyung Yu, In Young Choi, Seung Pyo Park, Sangseung Park, Dohoung Kim, Seung-Hoon Lee, Hong-Kyun Park, Min Soh, and Byung-Woo Yoon

Subjects
Chemical engineering, Chemistry, INT, Ischemic stroke, Nanoparticle, Cover (algebra), Nanotechnology, General Chemistry, Catalysis
Published
2012
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5. Rücktitelbild: Ceria Nanoparticles that can Protect against Ischemic Stroke (Angew. Chem. 44/2012)

Author

Byung-Woo Yoon, Taeho Kim, Taeghwan Hyeon, Jun Yup Kim, Hong-Kyun Park, Seung Pyo Park, Min Soh, Chi Kyung Kim, Hye-Sung Yang, Sangseung Park, Hyunduk Jang, Seung-Hoon Lee, Dohoung Kim, Young Ju Kim, In Young Choi, and Taekyung Yu

Subjects
medicine.medical_specialty, business.industry, Internal medicine, Ischemic stroke, Cardiology, Nanoparticle, Medicine, General Medicine, business
Published
2012
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