An environmentally friendly preparation of iodohydrins from alkenes mediated by clay-minerals

Journal of the Brazilian Chemical Society

Raul A. S Villegas²  Mônica R. M. P. De Aguiar²  Marcio C. S. De Mattos²  Alcides W. S Guarino¹  Lilian M Barbosa¹  Luiz Carlos F. N Assumpção¹ 

[1] ,Universidade Federal do Rio de Janeiro Instituto de Química Rio de Janeiro RJ ,Brazil

关键词: iodohydrins;    clay-minerals;    green chemistry;    alkenes;    eletrophilic addition;   

DOI  :  10.1590/S0103-50532004000100024

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License