Lindsay T. ByrneManat PhomakotrChompoonut PoolsanongVichai ReutrakulBrian W. SkeltonAllan H. WhiteUniversity of Western AustraliaMahidol University2018-07-242018-07-242003-08-12Australian Journal of Chemistry. Vol.56, No.7 (2003), 715-717000494252-s2.0-0042093780https://repository.li.mahidol.ac.th/handle/20.500.14594/20811Room-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.Mahidol UniversityChemistryArticleSCOPUS10.1071/CH02134