ISSN:
0268-2605
Keywords:
acetylene
;
unsaturated nitriles
;
2-vinylpyridines
;
cobalt(I) complexes
;
heterocyclotrimerization
;
photochemical activation
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The heterocyclization of unsaturated nitriles and ethyne catalyzed by cyclopentadienyl-1,5-cis,cis-cyclooctadiene-cobalt(I) and promoted by light has been studied in toluene as solvent. Acrylonitrile and substituted acrylonitriles gave results of interest in the preparation of 2-vinylpyridines. No reaction could be observed using fumaronitrile, maleonitrile or allyl cyanide.The (E)/(Z)-ratio of educts and products seems to be not influenced by conditions in the reaction.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aoc.590090802
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