Silicon and aluminum complexes

Details Silicon and aluminum complexes Silicon and aluminum complexes

1990-04-13

1992-03-24

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556464, 556482, 546 14, 544181, 544229, 549 4, 549 6, C07F 718, C07F 704

Patent

active

050990527

ABSTRACT:
Silicon and aluminum complexes having the following formula: ##STR1## wherein x is 0 or 1, T is H or ##STR2## each R is independently selected from the group consisting of H, OH, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.2-6 alkene, C.sub.6-12 aryl, C.sub.1-6 hydroxyalkyl, C.sub.1-6 thioalkyl, C.sub.2-12 alkoxyalkyl, C.sub.3-20 heteroaromatic, and combinations thereof, wherein R may further contain one or more atoms of a non-carbon element such as Si, Ge, Sn, P, and the like; and Y is a cation, are prepared by reacting silica or alumina with a diol, in the presence of a base, while removing water formed during the reaction. Methods for producing such complexes starting with silica or alumina, and methods for converting such complexes into other silicon or aluminum-containing compounds, are disclosed.

REFERENCES:
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patent: 4447628 (1984-05-01), Farnham
patent: 4577003 (1986-03-01), Farnham
patent: 4632967 (1986-12-01), Farnham
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Cecil L. Frye, J. Am. Chem. Soc., vol. 92, No. 2, pp. 1205-1210 (1970).
Youngdahl, K. A. and R. M. Laine, "Synthesis of Soluble Siliconates and Siloxanes from Silica" (abstract No. 421), Spring Newsletter, Jan. 1989, Division of Inorganic Chemistry, American Chemical Society.
Holmes, R. R. et al., "Cyclic Pentaoxy Siliconates", Phosphorus, Sulfur, and Silicon, 1989, vol. 42, pp. 1-13.
Boudin, A. et al., "Reaction of Grignard Reagents with Dianionic Hexacoordinated Silicon Complexes: Organosilicon Compounds from Silica Gel", Angew. Chem. Int. Ed. Engl. 25 (1986) No. 5.
03 above in German.
Barnum, D. W., "Reaction of Catechol with Colloidal Silica and Silicic Acid in Aqueous Ammonium", Inorganic Chemistry, vol. 11, No. 6, 1972.

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