97843-84-0Relevant academic research and scientific papers
Acid-Catalysed Rearrangements of α-Vinylcyclobutanones
Jackson, David A.,Rey, Max,Dreiding, Andre S.
, p. 439 - 449 (2007/10/02)
The BF3*Et2O- and the CH3SO3H-catalysed rearrangements of 10 α-vinylcyclobutanones have been examined.With little acid, the β,β-dialkyl derivatives 1 were transformed into linear dienones 2 and 3; with more acid, they were converted into cyclopentenones 4
PREPARATION OF 2-VINYLCYCLOBUTANONES AND THEIR CONVERSION TO CYCLOPENTENONES
Jackson, David A.,Rey, Max,Dreiding, Andre S.
, p. 4817 - 4820 (2007/10/02)
Methyl- and ethyl-vinylketene 3 were added to several simple olefins 1 to afford alkylated 2-vinylcyclobutanones 4, which in turn rearranged to cyclopentenones 6 (via dienones 5A,B) or 7 (via 1,2-acyl migration) under acid catalysis.Evidence is presented for a cyclopropyl-carbinyl intermediate 8.
