Along this same vein, allenyl vinyl ketones of the type studied extensively by Marcus Tius of the University of Hawaii show dramatic rate acceleration due to the removal of β-hydrogens, obviating a large amount of steric strain in the s-cis conformer.
An example of the latter case is shown below for the torquoselective Nazarov cyclization reaction of a chiral allenyl vinyl ketone.
Chain Reaction | Chemical reaction | Chain Reaction (song) | Thermidorian Reaction | Nuclear chain reaction | chemical reaction | SN2 reaction | SN1 reaction | Psychotic Reaction | nuclear reaction | Chain Reaction (game show) | Belousov–Zhabotinsky reaction | Substitution reaction | reaction | Orzubek Nazarov | McMurry reaction | Combat stress reaction | Chain Reaction (film) | Unchained Reaction | Ugi reaction | TNA Reaction | Staudinger reaction | Schmidt reaction | Sabatier reaction | Reaction Motors | Reaction Engines Limited | Rapid Reaction Force | Physical Attraction, Chemical Reaction | Order of reaction | nuclear chain reaction |