Boontanonda, Pavares published the artcilePalladium(II)-catalyzed ring expansion of methylenecyclobutanes and related systems, Formula: C5H10O, the publication is Journal of the Chemical Society, Chemical Communications (1977), 583-4, database is CAplus.
Treatment of methylenecyclobutane (I; R = H) with PdCl2-CuCl2-O2-H2O in C6H6 at 0° gave 75% cyclopentanone (II; R = H). I (R = CH2NHAc, CN) underwent analogous oxidative ring expansion at room temperature and 60° resp. on treatment with PdCl2-CuCl2-O2-H2O in EtOAc to give 65 and 82% II resp., whereas similar treatment of camphene (iso-PrOH, 65°), methylenecamphor (EtOAc, 45°) and methylenecyclopentane (EtOAc, 65°) gave only low yields of the corresponding ring expanded products. Methylenenorbornane (iso-PrOH, 45°), and β-pinene (Me3COH, 45°) gave the corresponding bis-π-allyl palladium chloride dimers quant. on treatment with PdCl23-CuCl2-O2-H2O whereas similar treatment of 4-RC6H4CPh:CH2 (R = H, MeO) gave 28.5% Ph2CO and 28.5% PhCH2COPh, and 62.5% PhCOC6H4OMe-4, resp.
Journal of the Chemical Society, Chemical Communications published new progress about 20117-47-9. 20117-47-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic cyclic hydrocarbon,Alcohol, name is 1-Methylcyclobutan-1-ol, and the molecular formula is C5H10O, Formula: C5H10O.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts