Source:http://linkedlifedata.com/resource/pubmed/id/15345847
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
Pt 9
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| pubmed:dateCreated |
2004-9-3
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| pubmed:abstractText |
In the Diels-Alder reaction, the preferred addition of dienes syn to the O atom in cross-conjugated cyclohexadienones containing an oxa-spiro ring system is observed. The two structures reported here, namely rel-(1R,4aR,9S,9aS,10R)-4a,9,9a,10-tetrahydro-9,10-diphenylspiro[9,10-epoxyanthracene-1(4H),2'-oxiran]-4-one, C27H20O3, and rel-(1R,4aS,9R,9aS,10S)-4a,9,9a,10-tetrahydro-9,10-diphenylspiro[9,10-epoxyanthracene-1(4H),2'-oxetane]-4-one, C28H22O3, are the minor and sole products, respectively, of the reactions of diphenylisobenzofuran with two slightly different cyclohexadienones. These structures differ in the size of the oxa-spiro ring, by one C atom, and in the relative configuration at the spirocyclic ring C atom, leading to some minor conformational differences between the two compounds.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Sep
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| pubmed:issn |
0108-2701
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
60
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
o656-8
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| pubmed:year |
2004
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| pubmed:articleTitle |
Preference for the Diels-Alder addition of dienes syn to the O atom in cross-conjugated spirocyclic cyclohexadienones.
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| pubmed:affiliation |
Evans Chemical Laboratories, Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA. gallucci.1@osu.edu
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| pubmed:publicationType |
Journal Article
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