Stereoselective total synthesis of cryptomoscatone E1
摘要:
The stereoselective total synthesis of cryptomoscatone El has been accomplished. The strategy involves Carreira's asymmetric alkynylation and olefin cross-metathesis reactions as key steps. (C) 2015 Elsevier Ltd. All rights reserved.
Total Synthesis of Laulimalide: Synthesis of the Northern and Southern Fragments
作者:Barry M. Trost、W. Michael Seganish、Cheol K. Chung、Dominique Amans
DOI:10.1002/chem.201102898
日期:2012.3.5
migration led to the development of an alternative route based on an asymmetric dinuclear Zn‐catalyzed aldol reaction of a hydroxyl acylpyrrole. This key reaction led to the desired diol adduct 66 with excellent syn/anti selectivity (10:1), and allowed for the successful completion of the northern fragment 7. The key step for the synthesis of the southern fragment was a chemoselective Rh‐catalyzed cycloisomerization
Stereoselective synthesis and biological evaluation of (R)-rugulactone, (6R)-((4R)-hydroxy-6-phenyl-hex-2-enyl)-5,6-dihydro-pyran-2-one and its 4S epimer
synthetic route has been developed for synthesis of (R)-rugulactone (1a), (6R)-((4R)-hydroxy-6-phenyl-hex-2-enyl)-5,6-dihydro-pyran-2-one (1b) and its 4S epimer 1c by employing proline-catalyzed α-aminooxylation, Sharpless epoxidation, Mitsunobu reaction as chirality introuducing steps. The antibacterial and antifungal activity of the compounds 1a, 1b and 1c were evaluated. 1a and 1b showed better antibacterial
A simple and highly efficient stereoselective synthetic route has been developed for the synthesis of (R)-rugulactone, a 6-arylalkyl-5,6-dihydro-2H-pyran-2-one, from readily available substrates such as 1,3-propanediol and 3-phenyl-1-propanal employing Keck's asymmetric allylation and cross metathesis as key steps. (C) 2009 Elsevier Ltd. All rights reserved.
Stereoselective total synthesis of cryptomoscatone E1
作者:Atla Raju、Kasa Shiva Raju、Gowravaram Sabitha
DOI:10.1016/j.tetasy.2015.07.005
日期:2015.9
The stereoselective total synthesis of cryptomoscatone El has been accomplished. The strategy involves Carreira's asymmetric alkynylation and olefin cross-metathesis reactions as key steps. (C) 2015 Elsevier Ltd. All rights reserved.