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Phenylseleno- and phenylsulfenolactonizations. Two highly efficient and synthetically useful cyclization procedures
K.C.Nicolaou, S.P. Seitz, W. J. Sipio, and J. F. Blount
J. Am. Chem. Soc.; 1979; 101(14) pp 3884 - 3893;
DOI: 10.1021/ja00508a028

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