Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yasuki Ohtawa and Hideo Tomioka and Noriyuki Kobayashi and Shigeru Murata,ChemInform Abstract: Intervention of Carbonyl and Oxonium Ylides in Reactions of (( Alkoxycarbonyl)phenyl)carbenes in the Gas Phase Forming 3‐ Alkylphthalides and 2‐Alkoxy‐1(2H)‐benzocyclobutenone. 13C and 18O Labeling Studies.,ChemInform,0931-7597,Wiley,1992-02-25,23,,,https://cir.nii.ac.jp/crid/1871709543143186944,https://doi.org/10.1002/chin.199208075