m-Chloroperbenzoic acid → 1-[4-(Methylsulfonyl)phenyl]-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine

Participants

Reaction Steps

By using 1-[4-(methylsulfinyl)phenyl]-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine (200 mg, 0.50 mmol) synthesized in Example 91 and 70% m-chloroperbenzoic acid (272 mg, 1.1 mmol), the reaction was carried out in the same manner as Example 91 to synthesis the title compound 67 mg (yield 31%). Melting point was 256 to 260° C. (hexane-THF).

Provenance & Evidence