01178nas a2200253 4500008004100000022001400041245008400055210006900139260000800208300001200216490000800228520038000236653000600616653002400622653001000646653001900656653001800675653001900693100002100712700002700733700002600760700002800786856011000814 2023 eng d a1615-415000aFeCl2-catalyzed rearrangement of aryl peroxyoxindole into 1,3-benzooxazin-4-One0 aFeCl2catalyzed rearrangement of aryl peroxyoxindole into 13benzo cFEB a515-5210 v3653 a

We report an FeCl2-catalyzed radical rearrangement of aryl peroxyoxindoles into 1,3-benzooxazin-2-ones to obtain a variety of aryl substituted 1,3-benzooxazin-4-ones in moderate to good yields. Mechanistically, this skeletal rearrangement of peroxyoxindoles proceeded via radical pathway and was well supported with a series of experimental findings and DFT studies.

10a110a3-Benzooxazin-4-one10aFeCl210aPeroxyoxindole10arearrangement10aRing expansion1 aMohanta, Nirmala1 aSamal, PragnyaParamita1 aKrishnamurty, Sailaja1 aGnanaprakasam, Boopathy uhttps://library.ncl.res.in/content/fecl2-catalyzed-rearrangement-aryl-peroxyoxindole-13-benzooxazin-4-one