Studies toward the synthesis of natural and unnatural dienediynes 1. Approaches to a functionalised bicyclic ring system
作者:S Caddick、V.M Delisser、V.E Doyle、S Khan、A.G Avent、S Vile
DOI:10.1016/s0040-4020(99)00045-9
日期:1999.2
The synthesis of a functionalised bicyclic ringsystem related to the naturally occurring dienediynes, NCS and Kedarcidin Chromophores is presented. Key steps involve: conjugate addition of an enediyne to a functionalised enone and intramolecular boron mediated aldol reaction.
Sequential pericyclic reaction of ene-diallene: synthesis of (±)-estrone
作者:Hirohumi Hakuba、Shinji Kitagaki、Chisato Mukai
DOI:10.1016/j.tet.2007.10.008
日期:2007.12
The one-pot construction of perhydrophenanthrene from an acyclic substrate was achieved via a sequential pericyclicreaction, which involved the in situ generation of ene-diallene species due to Myers' propargyl alcohol–allene transformation. The resulting perhydrophenanthrene derivative could be successfully converted into (±)-estrone.
The Myers-Saito-type cyclizations of enediyne derivatives via γ-oxo ketene acetal intermediates generated by the neighboring group participation of naphthoate ester groups in acidic media are described.
Design and dynamics of a chemically triggered reaction cascade leading to biradical formation at subambient temperature
作者:Andrew G. Myers、Peter S. Dragovich
DOI:10.1021/ja00207a036
日期:1989.12
Toward the Construction of Enediyne Prodrug Systems Related to the Ring Expanded Artifact Produced Upon Isolation of Maduropeptin Chromophore
作者:Cécile Roger、David S Grierson
DOI:10.1016/s0040-4039(97)10459-2
日期:1998.1
As part of a modular approach to synthesize maduropeptin analogues of general formula 3, the diacetylene substituted dihydro-1,2-oxazine synthon 13 was constructed via a hetero Diels-Alder reaction between diene 10 and the nitrosodienophile 12. Reductive cleavage of the N-O bond in 13, and acylation of the derived amine 16 gave the stable amide 17. (C) 1997 Published by Elsevier Science Ltd. All rights reserved.