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Updated: May 13, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
06:46

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Published on: June 21, 2017

巴拉催化1,4-butadiene的功能丧失,形成跳过的聚烯

Matthew S McCammant1, Longyan Liao, Matthew S Sigman

  • 1Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA.

Journal of the American Chemical Society
|March 12, 2013
PubMed
概括

一种新的催化反应使得从1,3-二烯中合成跳过的多烯. 这种方法形成了具有高选择性的两种碳-碳键,有助于制造复杂的分子,如利波沙丁A.

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The Diels–Alder reaction is one of the robust methods for synthesizing unsaturated six-membered rings. The reaction involves a concerted cyclic movement of six π electrons: four π electrons from the diene and two π electrons from the dienophile.
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Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...