Published 2007 | Version v1
Journal article Metadata-only

A new environmental friendly clay catalyst for one-pot coiodination and epoxidation of alkenes

Creators

  • 1. Universidade do Estado do Rio de Janeiro (UERJ), RJ (Brazil). Inst. de Quimica
  • 2. Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Inst. de Quimica
  • 3. Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Escola de Ciencias Biologicas

Description

The commercial Brazilian clay Bentonit BrasgelTM was characterized by chemical and textural analyses, XRD, and 27Al and 29Si MAS-NMR, that indicated the presence of α-quartz and smectite as clay-minerals. This natural clay proved to be an efficient catalyst for the conversion of alkenes into epoxides by the reaction with iodine/water followed by in situ addition of KOH in hexane (80-91 % yield). Similar results were obtained with Bentonit BrasgelTM intercalated with Ag(I). (author)

Availability note (English)

Also available from http://www.scielo.br/pdf/jbchs/v18n8/a10v18n8.pdf

Additional details

Identifiers

URL
http://www.scielo.br/pdf/jbchs/v18n8/a10v18n8.pdf;

Publishing Information

Journal Title
Journal of the Brazilian Chemical Society
Journal Volume
18
Journal Issue
8
Journal Page Range
p. 1509-1514
ISSN
0103-5053
CODEN
JOCSET

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
39066832
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALKENES; ALUMINIUM 27; ANISOLE; CATALYSTS; CYCLOHEXANE; DIOXANE; EPOXIDES; GAS CHROMATOGRAPHY; HEXANE; IODINE; KAOLINITE; MASS SPECTRA; METHANOL; NMR SPECTRA; QUARTZ; SILICA; SILICON 29; SMECTITE; STYRENE; SUBSTRATES
Descriptors DEC
ALCOHOLS; ALKANES; ALKYLATED AROMATICS; ALUMINIUM ISOTOPES; AROMATICS; CHROMATOGRAPHY; CLAYS; CYCLOALKANES; ELEMENTS; ETHERS; EVEN-ODD NUCLEI; HALOGENS; HETEROCYCLIC COMPOUNDS; HYDROCARBONS; HYDROXY COMPOUNDS; ISOTOPES; LIGHT NUCLEI; MINERALS; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; OXIDE MINERALS; SEPARATION PROCESSES; SILICATE MINERALS; SILICON ISOTOPES; SPECTRA; STABLE ISOTOPES

Optional Information

Notes
22 refs., 4 figs., 3 tabs., 1 scheme