144784-06-5Relevant academic research and scientific papers
A New Xanthone Synthesis from the Diels-Alder Reaction between 2-Vinylchromen-4-ones and Cyclopentanone Enamine
Letcher, Roy M.,Yue, Tai-Yuen
, p. 1310 - 1311 (1992)
The reaction between 2-vinylchromen-4-ones and 1-pyrrolidinylcyclopentene give substituted 2,3,3a,4-tetrahydrocyclopentaxanthen-11(5H)-ones; the stereochemistry of the product shows that the initial step in the reaction may be considered to be an exo-addition Diels-Alder with inverse electron demand.
