%0 Journal Article %T An environmentally friendly preparation of iodohydrins from alkenes mediated by clay-minerals %A Villegas %A Raul A. S %A Aguiar %A M£¿nica R. M. P. de %A Mattos %A Marcio C. S. de %A Guarino %A Alcides W. S %A Barbosa %A Lilian M %A Assump£¿£¿o %A Luiz Carlos F. N %J Journal of the Brazilian Chemical Society %D 2004 %I Sociedade Brasileira de Qu¨ªmica, SBQ %R 10.1590/S0103-50532004000100024 %X iodohydrins are useful intermediates in organic synthesis for the preparation of epoxides. herein is reported the preparation of iodohydrins in good yields by the reaction of alkenes (ciclohexene, styrene, a-methylstyrene, and 1-octene) with iodine and water at room temperature, in presence of acid commercial clays (k-10 and ksf) and natural brazilian clays (f-101 and f-117), being the best results obtained with brazilian clays (61-90%). the xrd results confirmed that the clays belong to the smectite clay-mineral group and k-10, ksf and f-117 have other clay-minerals in their structures. %K iodohydrins %K clay-minerals %K green chemistry %K alkenes %K eletrophilic addition. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532004000100024&lng=en&nrm=iso&tlng=en