Date of Thesis
1979
Description
We have found that the hydrocyanation of ethyl 2,3-dihydro-2-methoxy-4-oxo-2-aryl-4H-l-benzopyranylidine-3-acetate with potassium cyanide in aqueous ethanol produces the enolate of ethyl 4-oxo-2-aryl-c-cyano-4H-l-benzopyran-3-acetate. Acidification of the reaction with dilute hydrochloric acid protonates the enolate and precipitates the neutral ester. Hydrocyanating 4’-methoxylated ethyl 2,3-dihydro-2-methoxy-4-oxo-2-aryl-4H-l-benzopyranylidene-3-acetate affords the byproduct 4-oxo-2-aryl-4H-l-benzopyran-3-acetonitrile prior to acidification.
Access Type
Masters Thesis
Degree Type
Master of Science
Major
Chemistry
First Advisor
Manning A. Smith
Recommended Citation
Klebanoff, Leonard Elliott, "The Hydrocyanation of Some Substituted 4H-1-Benzopyranylidene-3-Acetates" (1979). Master’s Theses. 283.
https://digitalcommons.bucknell.edu/masters_theses/283