US2003023105A1PendingUtilityA1
Synthesis and isolation of metal alkoxides
Priority: May 30, 2000Filed: Jul 22, 2002Published: Jan 30, 2003
Est. expiryMay 30, 2020(expired)· nominal 20-yr term from priority
C07C 29/70
40
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Claims
Abstract
A method for synthesizing highly soluble metal alkoxides includes the step of reacting a tertiary alcohol having the formula: wherein R 1 , R 2 and R 3 are, independently, the same or different, an alkyl group, an alkenyl, an alkynyl group or an aryl group, and at least one of R 1 , R 2 , and R 3 is a group of at least 3 carbon atoms, with at least a stoichiometric amount of a metal reagent. The metal reagent is generally a group I metal, a group II metal, zinc, a metal alloy of a group I metal, a metal alloy of a group II metal, a metal alloy of zinc, a compound of a group I metal, a compound of a group II metal or a compound of zinc.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A method for synthesizing highly soluble metal alkoxides comprising the step of:
reacting a tertiary alcohol having the formula: wherein R 1 , R 2 , and R 3 are, independently, the same or different, an alkyl group, an alkenyl group, an alkynyl group or an aryl group, and at least one of R 1 , R 2 , and R 3 is a group of at least 3 carbon atoms, with at least a stoichiometric amount of a metal reagent selected from the group of a group I metal, a group II metal, zinc, an alloy of a group I metal, an alloy of a group II metal, an alloy of zinc, a compound of a group I metal, a compound of a group II metal or a compound of zinc.
2 . The method of claim 1 wherein the metal reagent is K, Li, Na, Cs, Mg, Ca or Zn, an alloy of K, Li, Na, Cs, Mg, Ca or Zn, or a compound of K, Li, Na, Cs, Mg, Ca or Zn.
3 . The method of claim 1 wherein the alcohol is 3,7-dimethyl-3-octanol.
4 . The method of claim 3 wherein the metal reagent is K, Li, Na, Cs, Mg, Ca or Zn, an alloy of K, Li, Na, Cs, Mg, Ca or Zn, or a compound of K, Li, Na, Cs, Mg, Ca or Zn.
5 . The method of claim 3 wherein the metal reagent is K, an alloy of K, or a compound of K.
6 . The method of claim 1 wherein the metal reagent is K, Li, or Na, an alloy of K, Li or Na, or a compound of K, Li or Na.
7 . The method of claim 1 wherein the concentration of the metal alkoxide in a solvent is greater than approximately 50%.
8 . The method of claim 1 wherein the concentration of the metal alkoxide in a solvent is greater than approximately 75%.
9 . The method of claim 1 wherein the metal reagent is reacted with neat tertiary alcohol and the reaction provides a generally pure, liquid metal alkoxide.
10 . The method of claim 1 wherein a solvent is distilled from the metal alkoxide to provide a generally pure, liquid metal alkoxide.
11 . The method of claim 9 wherein the alcohol is 3,7-dimethyl-3-octanol.
12 . The method of claim 10 wherein the alcohol is 3,7-dimethyl-3-octanol.
13 . The method of claim 7 wherein the solvent is an aliphatic hydrocarbon, an aromatic hydrocarbon, or a polar aprotic solvent.
14 . The method of claim 1 wherein the alcohol is linalool, dimethylbenzenepropanol or 2-methyl-2-hexanol.
15 . The method of claim 1 wherein an excess of metal reagent is used.
16 . A solution a metal alkoxide of the formula:
wherein R 1 , R 2 , and R 3 are, independently, the same of different, an alkyl group, an alkenyl group, an alkynyl group or an aryl group, and at least one of R 1 , R 2 , and R 3 is a group of at least 3 carbon atoms, the metal is a group I metal, a group II metal or Zn, R 4 is an alkyl group or an alkoxyl group, n is 0 if the metal is monovalent, n is 1 if the metal is divalent, and the concentration of metal alkoxide in the solvent is greater than 50 wt %.
17 . The solution of claim 16 wherein the metal is K, Li, Na, Cs, Mg, Ca or Zn.
18 . The solution of claim 16 wherein the concentration of the metal alkoxide is greater than 75%.
19 . The solution of claim 16 wherein the metal alkoxide is a metal-3,7-dimethyl-3-octanoxide.
20 . The solution of claim 16 wherein the solvent is an aliphatic hydrocarbon, an aromatic hydrocarbon or a polar aprotic solvent.
21 . A compound having the formula R 4 n M-(3,7-dimethyl-3-octanoxide), wherein M is a group I metal, a group II metal or Zn, R 4 is an alkyl group or an alkoxyl group, n is 0 if the metal is monovalent, n is 1 if the metal is divalent, and wherein the compound is liquid at or below 25° C. and has a purity greater than 97 wt %.
22 . The compound of claim 20 wherein the metal is K, Li, Na, Cs, Mg, Ca or Zn.
23 . The compound of claim 20 wherein the metal is K, Na or Li.
24 . The compound of claim 20 wherein the metal is K.Join the waitlist — get patent alerts
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