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Communication | Special issue | Vol 42, No. 1, 1996, pp.71-74
Published online, 1st January, 1970
DOI: 10.3987/COM-95-S23
Highly Diastereoselective Oxidation of 1-Alkylsulfinyl-9-(alkylthio)dibenzothiophene with MCPBA in the Presence of Trifluoroboran Etherate

Takeshi Kimura, Hidetaka Nakayama, and Naomichi Furukawa

*Department of Chemistry, University of Tsukuba, 1-1-1 Ten-nodai, Tsukuba-shi, Ibaraki, 305-8571, Japan


1-Alkylsulfinyl-9-(alkylthio)dibenzothiophene was oxidized readily by mCPBA/Et2O·BF3 in CH2Cl2 at -78°C to give one diastereomeric isomer of 1,9-bis(alkylsulfinyl)dibenzothiophene in high yield.