Aluminum triisopropoxide

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Structural formula
Structural formula of aluminum triisopropoxide
General
Surname Aluminum triisopropoxide
other names
  • Aluminum triisopropoxide
  • Aluminum isopropoxide
Molecular formula C 9 H 21 AlO 3
Brief description

white solid with an alcoholic odor

External identifiers / databases
CAS number 555-31-7
EC number 209-090-8
ECHA InfoCard 100.008.265
PubChem 16685055
Wikidata Q3269574
properties
Molar mass 204.25 g mol −1
Physical state

firmly

density

1.035 g cm −3

Melting point

130-134 ° C

boiling point

135 ° C at 13 hPa

solubility

decomposes in water

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
02 - Highly / extremely flammable

danger

H and P phrases H: 228
P: 210
Toxicological data

11300 mg kg −1 ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Aluminum triisopropoxide is a chemical compound of aluminum from the group of alcoholates .

Extraction and presentation

Aluminum triisopropoxide can be produced by reacting amalgamated aluminum with isopropyl alcohol (similar to the process with tert-butyl alcohol ).

properties

Aluminum triisopropoxide is a flammable, moisture-sensitive white solid with an alcoholic odor that decomposes in water. Aluminum triisopropoxide is hydrolyzed to aluminum oxide by moisture . It is a versatile oligomeric Lewis acid catalyst.

The compound has a tetrameric structure.

use

It is used as a specific reducing agent in the Meerwein-Ponndorf-Verley reduction or in a catalytic amount in the Oppenauer oxidation .

Individual evidence

  1. a b c d e f g h i j Entry on aluminum triisopropanolate in the GESTIS substance database of the IFA , accessed on September 13, 2015(JavaScript required) .
  2. Entry on aluminum triisopropanolate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  3. Seung-Joon Yoo, Ho-Sung Yoon, Hee Dong Jang, Jung-Woon Lee, Seung-Tae Hong, Min-Jae Lee, Se-Il Lee, Ki-Won Jun: Synthesis of aluminum isopropoxide from aluminum dross. In: Korean Journal of Chemical Engineering. 23, 2006, p. 683, doi : 10.1007 / BF02706815 .
  4. ^ Wayne, W .; Adkins. H .: Aluminum tert-Butoxide In: Organic Syntheses . 21, 1941, p. 8, doi : 10.15227 / orgsyn.021.0008 ; Coll. Vol. 3, 1955, p. 48 ( PDF ).
  5. Data sheet Aluminum isopropoxide, ≥99.99% trace metals basis from Sigma-Aldrich , accessed on September 13, 2015 ( PDF ).
  6. Thomas A. Zevaco, Annette Janssen, Jakub Sypien, Eckhard Dinjus: Aluminum triisopropoxide: An inexpensive and easy-to-handle catalyst of the copolymerization of cyclohexene oxide with CO 2 . In: Green Chemistry. 7, 2005, p. 659, doi : 10.1039 / B504798F .
  7. Rene 'König: Local Structures of Nanoscopic Aluminum Alkoxide Fluorides And Chemically Related Crystalline Compounds . disserta Verlag, 2009, ISBN 978-3-942109-00-0 , p. 147 ( limited preview in Google Book search).
  8. Hans Wilhelm Bach, et al .: Houben-Weyl Methods of Organic Chemistry Vol. E 3, 4th Edition Supplement Aldehydes . Georg Thieme Verlag, 2014, ISBN 978-3-13-181134-9 , p. 274 ( limited preview in Google Book search).