AbstractThe aldehydes (I) are coupled with methyl acrylate (II) in the presence of 1,4‐diazabicyclo(2.2.2)octane (DABCO) to yield the 2‐(1‐hydroxyalkyl)acrylates (III).

AbstractThe reaction of the aldehydes (I) with the ketone (II) yields the products (III) (no yields given).

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStereoselective generation and facile dimerization of (E)-2-methylene-3-alkenoic acid estersWolfgang Poly, Dietmar Schomburg, and H. M. R. HoffmannCite this: J. Org. Chem. 1988, 53, 16, 3701–3710Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissue 1 August 1988https://doi.org/10.1021/jo00251a009Request reuse permissionsArticle Views1116Altmetric-Citations43LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-Alertsclose Get e-Alerts

Four new σ bonds and two new π bonds are formed in two steps from the readily accessible starting materials 1 and 2 via the in situ dimerization of the dehydrated products 3 to give the functionalized 1,4-diacetylcyclohexenes 4. The products 4, which are formed in a para-selective fashion and contain a quaternary C atom, are of interest for the synthesis of terpenes. RH, Me, iPr, CH2OMe, CH2CO2Me (selected).

Vier neue σ- und zwei neue p-Bindungen entstehen in zwei Stufen aus den gut zugänglichen Edukten 1 und 2 über die in-situ-Dimerisierung der Dehydratisierungsprodukte 3 zu den funktionalisierten 1,4-Diacetylcyclohexenen 4. Die para-selektiv gebildeten Produkte 4 mit quartärem C-Atom sind für Terpensynthesen von Interesse. R = H, Me, iPr, CH2OMe, CH2CO2Me (Auswahl).