... CHEMO- AND REGIOSELECTIVITIES IN ACID-CATALYZED RING EXPANSION OF 1-[1-METHYLSULFINYL-1-(METHYLTHIO)ALKYL]CYCLOBUTANOL DERIVATIVES Katsuyuki OGURA,*† Mitsuo YAMASHITA, Michiyo SUZUKI, and Gen-ichi TSUCHIHASHI*1) Sagami Chemical Research Center, Nishi-Ohnuma 4-4-1, Sagamihara, Kanagawa 229 and † Department of Synthetic Chemistry, Faculty of Engineering, Chiba University, ...