337919-17-2Relevant academic research and scientific papers
The Diels-Alder reactions of quinone imine ketals: A synthesis of the ergot skeleton
Banfield,Kerr
, p. 436 - 438 (2007/10/03)
The high pressure (13 kbar) Diels-Alder reaction of N-benzoyl-p-benzoquinone-mono-imine dimethyl ketal with an appropriate diene yields, after treatment with anhydrous acid, a dihydronaphthanilide. Conversion to the tricyclic skeleton of the ergot alkaloids is effected via a series of simple transformations.
