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Zhdankin, V. V., Science of Synthesis Knowledge Updates, (2015) 1, 277.
Optimized reaction conditions for hypervalent iodine catalyzed oxylactonization consist of the treatment of an oxo carboxylic acid with iodobenzene (10 mol%), 4-toluenesulfonic acid monohydrate (20 mol%), and 3-chloroperoxybenzoic acid as the stoichiometric oxidant in nitromethane solution; a representative example is the cyclization of the oxo carboxylic acid 112 to the oxo lactone 113 (Scheme 59).[153]
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References
[153] | Meeeee, M.; Meeee, M.; Meeeeeee, M., Meeeee. Mee. Meee. Meee., (8888) 88, 8888. |
[154] | Mee, M.; Meee, M.; Meee, M.; Me, M., Meeeeee, (8888), 8888. |