Výsledky vyhledávání

Stereoselective Synthesis of Piperidine Alkaloid (+)-α-Conhydrine and Its Pyrrolidine Analogue

Autor: Won-Hun Ham, Yu Mu, Jin-Seok Kim, Gun-Woo Kim, Jae-Eun Joo, Tian Jin, Kee-Young Lee, Sung-Il Huh, Sung-Soo Kim

Publikováno v: Asian Journal of Organic Chemistry. 1:232-237

Concise stereoselective syntheses of (+)-α-conhydrine and its pyrrolidine analogue are described. The key features are a highly diastereoselective chelation-controlled hydride reduction of the amino ketone, to give the anti amino alcohol directly, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9975aadfaf480cf7fd2c3be25d2bc72a
https://doi.org/10.1002/ajoc.201200065

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Total Synthesis of d-lyxo-Phytosphingosine and Formal Synthesis of Pachastrissamine via a Chiral 1,3-Oxazine

Autor: Seok-Hwi Park, Xiangdan Jin, Jae-Eun Joo, Ji-Yeon Kim, Won-Hun Ham, Yu Mu

Publikováno v: Synthesis. 44:2340-2346

Concise and efficient syntheses of d - lyxo -phytosphingosine and pachastrissamine were achieved utilizing a chiral oxazine. The key features in these strategies are the stereoselective intramolecular oxazine formation catalyzed by palladium(0), and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::637140fc3f889d0f00969b0d3ff0b1c9
https://doi.org/10.1055/s-0031-1289813

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Stereoselective intramolecular cyclization of γ-allylbenzamide via π–allylpalladium complex catalyzed by Pd(0)

Autor: Yu Mu, Kee-Young Lee, Won-Hun Ham, Van-Thoai Pham, Tai-Won Kim, Jae-Eun Joo

Publikováno v: Tetrahedron. 66:2123-2131

An efficient procedure for synthesizing oxazines was developed by the palladium(0)-catalyzed intramolecular cyclization of a benzamide through a π-allylpalladium (II) complex. Interestingly, the diastereoselectivity of oxazine ring formation was dom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac94febad0a633b01b4e92f19923dddb
https://doi.org/10.1016/j.tet.2010.01.075

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Stereoselective total synthesis of (2S,3R)-3-hydroxypipecolic acid

Autor: Won-Hun Ham, Yong-Shou Tian, Van-Thoai Pham, Chang-Young Oh, Jae-Eun Joo, Yun-Sung Chung, Kee-Young Lee

Publikováno v: Tetrahedron: Asymmetry. 19:318-321

A concise, stereocontrolled synthesis of (2 S ,3 R )-3-hydroxypipecolic acid 1 is described. Key features involve diastereoselective oxazoline formation catalyzed by palladium(0) and intramolecular cyclization by catalytic hydrogenation of an oxazoli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a49c6303f28c7ae8c53a4fb5da4e120f
https://doi.org/10.1016/j.tetasy.2008.01.010

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Stereoselective Intramolecular Oxazine Formation by a π-Allylpalladium Complex Catalyzed by Pd0

Autor: Won-Hun Ham, Van-Thoai Pham, Jae-Eun Joo, Kee-Young Lee

Publikováno v: European Journal of Organic Chemistry. 2007:1586-1593

An efficient procedure for synthesizing oxazines was developed by the palladium(0)-catalyzed intramolecular cyclization of a benzamide through a π-allylpalladium(II) complex. Unlike other palladium-catalyzed reactions, the temperature was found to b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f90848746c9a9f7f72140d6149b1f231
https://doi.org/10.1002/ejoc.200600927

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