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US 4,379,931 AGranted
Metal extraction from solution and novel compounds used therefor
AssigneeDow Corning Corporation
InventorEdwin P. Plueddemann
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Abstract
What is disclosed is the preparation of novel silanes, their reaction products on various substrates and the use of the treated substrates to extract metal ions from solution. An example of such a novel compound is ##STR1##
Claims13
A compound of the formula ##STR25## wherein X is an alkoxy radical containing 1-4 carbon atoms;
- Q is a ##STR26## radical;
- y has a value of 0 or 1;
- R is hydrogen or an R'.sub.3 Si-- radical wherein R' is CH.sub.3 -- or CH.sub.3 CH.sub.2 --.
A method of preparing a compound which comprises
- (I) contacting 8-hydroxyquinoline with an allylhalide in the presence of an anhydrous base and a solvent for a period of time sufficient to react essentially all of the allylhalide with the 8-hydroxyquinoline;
- (II) distilling the product from (I) to remove any solvent and unreacted reactants from the reaction mixture;
- (III) heating the residue product from (II) in an inert atmosphere until essentially all of the residue product is rearranged to form allyl containing, 8-hydroxyquinoline;
- (IV) treating the rearranged reaction product from (III) with a silylating agent selected from a group consisting of (R".sub.3 Si).sub.2 NH, R".sub.3 SiCl and R".sub.3 SiOR'" wherein R" is an alkyl group containing 1 or 2 carbon atoms and R'" is an alkyl radical containing 1 to 4 carbon atoms;
- (V) reacting the reaction product from (IV) with (R""O).sub.3 SiH, wherein R"" is an alkyl radical containing 1-4 carbon atoms in the presence of a hydrosilation catalyst, whereby a compound is formed of the formula ##STR27## wherein X is an alkoxy radical containing 1-4 carbon atoms;
- Q is ##STR28## y has a value of 0 or 1;
- R' is an alkyl radical containing 1 or 2 carbon atoms.
4 more elements
Dependencies are inferred from the claim text.