Acyclic diene metathesis

Acyclic diene metathesis

Acyclic diene metathesis or ADMET is a special type of olefin metathesis used to polymerize certain terminal dienes to polyenes:

The new double bonds formed can be in cis- or trans-configuation.

It is a type of step growth condensation reaction whereas the other metathesis reaction, ring-opening metathesis polymerization is a chain-growth polymerization.

ADMET was introduced by K. B. Wagener in 1991 ["Acyclic diene metathesis (ADMET) polymerization" K. B. Wagener, J. M. Boncella, and J. G. Nel Macromolecules; 1991; 24(10) pp 2649 - 2657; DOI| 10.1021/ma00010a001] . He successfully polymerized 1,5-hexadiene to polybutadiene with 70% trans double bonds and Weight average molar mass of 28000.

ADMET has been applied in the synthesis of new supramolecular structures ["Template-Directed One-Step Synthesis of Cyclic Trimers by ADMET" Hongyi Hou, Ken C.-F. Leung, Daniela Lanari, Alshakim Nelson, J. Fraser Stoddart, and Robert H. Grubbs J. Am. Chem. Soc.; 2006; 128(48) pp 15358 - 15359; (Communication) DOI|10.1021/ja065572j] .

External links

* [http://www.ictos.tugraz.at/meta_altmet.htm ADMET Graz University of Technology]
* [http://www.chem.ufl.edu/~wagener/Publications%20and%20Research%20Page/Publications%20and%20Research%20root.html Wagener group]

References


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