Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q2687640> ?p ?o }
Showing triples 1 to 18 of
18
with 100 triples per page.
- Q2687640 subject Q7565754.
- Q2687640 abstract "In chemistry a convergent synthesis is a strategy that aims to improve the efficiency of multistep synthesis, most often in organic synthesis. In this type of synthesis several individual pieces of a complex molecule are synthesized in stage one and then in stage two these pieces are combined to form the final product In linear synthesis the overall yield quickly drops with each reaction step:A → B → C → DSuppose the yield is 50% for each reaction, the overall yield of D is only 12.5% from A.In a convergent synthesisA → B (50%)C → D (50%)B + D → E (25%)the overall yield of E (25%) looks much better. Convergent synthesis is applied in the synthesis of complex molecules and involve fragment coupling and independent synthesis.Examples: Convergent synthesis is encountered in dendrimer synthesis where branches (with the number of generations preset) are connected to the central core Proteins of up to 300 amino acids are produced by a convergent approach using chemical ligation. An example of its use in total synthesis is the final step (photochemical [2+2]cycloaddition) towards the compound Biyouyanagin A:Final step in total synthesis of Biyouyanagin A with acetonaphthone photosensitizer↑ ↑ ↑".
- Q2687640 thumbnail BiyouyanaginATotalSynthesis.png?width=300.
- Q2687640 wikiPageWikiLink Q1153832.
- Q2687640 wikiPageWikiLink Q188651.
- Q2687640 wikiPageWikiLink Q2329.
- Q2687640 wikiPageWikiLink Q2566866.
- Q2687640 wikiPageWikiLink Q273499.
- Q2687640 wikiPageWikiLink Q5090481.
- Q2687640 wikiPageWikiLink Q644785.
- Q2687640 wikiPageWikiLink Q7565754.
- Q2687640 wikiPageWikiLink Q777948.
- Q2687640 wikiPageWikiLink Q8066.
- Q2687640 wikiPageWikiLink Q898648.
- Q2687640 wikiPageWikiLink Q903923.
- Q2687640 comment "In chemistry a convergent synthesis is a strategy that aims to improve the efficiency of multistep synthesis, most often in organic synthesis.".
- Q2687640 label "Convergent synthesis".
- Q2687640 depiction BiyouyanaginATotalSynthesis.png.