Method of preparing macrocylic metal cyanine compound

• US 7,834,175 B2
• Filed: 05/31/2009
• Issued: 11/16/2010
• Est. Priority Date: 08/09/2004
• Status: Expired due to Fees

• Current Assignee: BASF SE
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Hall, Lachlan Everett, Silverbrook, Kia, Vonwiller, Simone Charlotte, Starling, Scott Matthew, Fielder, Simon, Lapstun, Paul, Ridley, Damon Donald, Gonzaga, Graciel
• Primary Examiner(s): Wilson; James O.
• Assistant Examiner(s): Ward; Paul V.
• Application Number:
  US12/475,570
• Publication Number:
  US 20090240050A1
• Time in Patent Office: 534 Days
• Field of Search: 540/145
• US Class Current: 540/145
• CPC Class Codes: C07D 487/22 in which the condensed system contains four or more hetero rings
• CPC Class Codes: C09B 47/0675 having oxygen or sulfur linked directly to the skeleton
• CPC Class Codes: C09D 11/328 characterised by dyes

Abstract

A method of preparing a macrocyclic metal cyanine. The method comprises the step of providing a corresponding macrocyclic metal-free cyanine compound dissolved in a solvent and adding a metal reagent thereto. The metal reagent is highly soluble in the solvent and typically comprises one or more organic ligands.

Claims

1. A method of preparing a macrocyclic metal cyanine, said method comprising the step of providing a corresponding macrocyclic metal-free cyanine compound dissolved in an organic solvent and adding a metal reagent thereto, said metal reagent being highly soluble in said organic solvent, wherein the macrocyclic metal cyanine is of formula (I):

2. The method of claim 1, wherein the oxidation state of the metal in said metal reagent matches the oxidation state of the metal in said macrocyclic metal cyanine.

3. The method of claim 1, wherein said metal reagent comprises one or more ligands for providing said solubility in said solvent.

4. The method of claim 3, wherein said one or more ligands are selected from the group consisting of acetylacetonate (acac), acetate and C_1-8 alkoxide.

5. The method of claim 1, wherein the metal is vanadium.

6. The method OF claim 1, wherein the metal reagent is VO(acac)₂.