Aluminium phenolate

Aluminium phenolate
Names
	Other names Aluminium phenoxide
Identifiers
CAS Number	15086-27-8;
3D model (JSmol)	Interactive image;
ChemSpider	146313;
ECHA InfoCard	100.035.565
EC Number	239-137-8;
PubChem CID	167236;
	InChI InChI=1S/3C6H6O.Al/c37-6-4-2-1-3-5-6;/h31-5,7H;/q;;;+3/p-3 Key: OPSWAWSNPREEFQ-UHFFFAOYSA-K;
	SMILES C1=CC=C(C=C1)[O-].C1=CC=C(C=C1)[O-].C1=CC=C(C=C1)[O-].[Al+3];
Properties
Chemical formula	C18H15AlO3
Molar mass	306.297 g·mol−1
Appearance	white solid
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314
Precautionary statements	P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Aluminium phenolate is the metalloorganic compound with the formula [Al(OC₆H₅)₃]_n. It is a white solid. ²⁷Al NMR studies suggest that aluminium phenolate exists in benzene solution as a mixture of dimer and trimer. The compound is can be prepared by the reaction of elemental aluminium with phenol:

Al + 3 HOC₆H₅ → Al(OC₆H₅)₃ + 1.5 H₂

The compound is used as a catalyst for the alkylation of phenols with various alkenes. For example, the ethylphenols are generated commercially by treating phenol with ethylene in the presence of a catalytic amount of aluminium phenolate.

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