Sequential transhalogenation and Heck reaction for efficient access to dioxo-tetrasubstituted 2,4 E,E-dienes: synthesis of segment C1–C6 of apoptolidin
摘要:
Efficient access to dioxo-tetrasubstituted 2,4 E,E-dienes is developed in three steps from commercially available starting materials via sequential trans halogenation and Heck reaction, which provides potentially useful synthons for the synthesis of a tetrasubstituted conjugated diene structure in complex molecules. Thereby, segment C1-C6 of apoptolidin is synthesized. (c) 2006 Elsevier Ltd. All rights reserved.
Sequential transhalogenation and Heck reaction for efficient access to dioxo-tetrasubstituted 2,4 E,E-dienes: synthesis of segment C1–C6 of apoptolidin
作者:Xiaojin Li、Xingzhong Zeng
DOI:10.1016/j.tetlet.2006.07.058
日期:2006.9
Efficient access to dioxo-tetrasubstituted 2,4 E,E-dienes is developed in three steps from commercially available starting materials via sequential trans halogenation and Heck reaction, which provides potentially useful synthons for the synthesis of a tetrasubstituted conjugated diene structure in complex molecules. Thereby, segment C1-C6 of apoptolidin is synthesized. (c) 2006 Elsevier Ltd. All rights reserved.
Studies on the Synthesis of Apoptolidin: Synthesis of a C<sub>1</sub>–C<sub>27</sub> Fragment of Apoptolidin D
作者:Madduri Srinivasarao、Youngsoon Kim、Xiaojin Harry Li、Daniel W. Robbins、Philip L. Fuchs
DOI:10.1021/jo200934w
日期:2011.10.7
Synthesis of a C1–C27 fragment, a key intermediate in the synthesis of apoptolidin D, is reported. The synthesis involves a combination of Heck coupling and Horner–Wadsworth–Emmons reaction for the C1–C7 trienoate portion and an efficient Suzuki cross-coupling protocol for the C10–C13 diene portion.