Australian Journal of Chemistry. Vol.56, No.7 (2003), 715-717
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Lindsay T. Byrne, Manat Phomakotr, Chompoonut Poolsanong, Vichai Reutrakul, Brian W. Skelton, Allan H. White α-sulfonyl radical initiated intramolecular tandem radical cyclization: Stereochemistries of a pair of doubly cyclized products. Australian Journal of Chemistry. Vol.56, No.7 (2003), 715-717. doi:10.1071/CH02134 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/20811
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α-sulfonyl radical initiated intramolecular tandem radical cyclization: Stereochemistries of a pair of doubly cyclized products
Room-temperature single-crystal X-ray structure determinations are recorded for trans-1,2,3,3a,9,9a-Hexahydro-cyclopenta[b]-1-benzothiapyran-4, 4-dioxide and its 3a-methyl analogue, minor products of the α-sulfonyl radical-initiated intramolecular tandem radical cyclization of H2C=CH(CH2)CRBrSO2Ph (R = H, CH3), confirming the assigned structures and rigorously establishing the trans relationship at the ring junctions.
