Abstract: The chemistry of the adducts of 1-lithiocyclopropyl phenyl sulfide to aldehydes and ketones is reported. Treatment of these compounds with p-toluenesulfonic acid under anhydrous conditions or the Burgess reagent yields l-phenylthiocyclobutenes, which may be hydrolyzed to cyclobutanones, desulfurized to cyclobutanes, or thermalized to dienes. Rearrangement to cyclobutanones can be achieved under four sets of conditions:(1) ...
![Spiro[3.3]heptan-1-one Structure](https://image.chemsrc.com/caspic/441/63049-05-8.png)