159848-13-2Relevant academic research and scientific papers
Stereospecific annulation and sequential ring-opening of (R)-carvone: Formation of a novel tricyclic dione
Zhang, Wie,Dowd, Paul
, p. 5161 - 5164 (1994)
Free radical annulation followed by trimethylsilyl iodide-promoted ring- opening of (R)-carvone-dichloroketene adducts leads to an unusual carbon skeleton rearrangement. The carbonyl group of carvone enhances the reactivity of the radical cyclization, changes the ring-opening pathway and leads to the formation of a new tricyclic dione product.
Free radical annulation of dichlorocyclobutanones with sequential ring expansion
Dowd, Paul,Zhang, Wei,Geib, Steven J.
, p. 3435 - 3454 (2007/10/02)
A new synthetic sequence that adds the elements of ketene across the termini of a 1,5-diene is described. Dichlorocyclobutanone adducts from reaction of dichloroketene with 1,5-dienes undergo intramolecular free radical annulation. Lewis acid-promoted rin
