Highly fluorescent pyrrole-BF2 chromophores

US10676489B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10676489-B2
Application numberUS-201816229368-A
CountryUS
Kind codeB2
Filing dateDec 21, 2018
Priority dateNov 20, 2013
Publication dateJun 9, 2020
Grant dateJun 9, 2020

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Fluorescent chromophores nicknamed BOPHY are provided. The chromophores may be readily synthesized in two steps from readily available reagents via the coupling of a pyrrole aldehyde or ketone with hydrazine, followed by reaction with BF 3 . The resultant symmetric and dimeric tetracycle is comprised of two BF 2 units in six-member chelate rings, appended by pyrrole units on the periphery. The quantum yield of fluorescence for the unmodified compound and the tetramethyl variant are near unity, with values 95 and 92% respectively in CH 2 Cl 2 .

First claim

Opening claim text (preview).

What is claimed is: 1. A compound defined by the following structure: 2. A functionalizable compound defined by the following structure: wherein R is H or an aromatic group. 3. The compound of claim 2 , wherein the aromatic group is a benzene ring. 4. The compound of claim 2 , wherein the aromatic group is an azole group. 5. The compound of claim 2 , wherein the aromatic group is a thiophene ring.

Assignees

Inventors

Classifications

  • comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution · CPC title

  • Organic tenebrescent materials · CPC title

  • Electricity · mapped topic

  • Measuring or testing processes involving enzymes, nucleic acids or microorganisms (measuring or testing apparatus with condition measuring or sensing means, e.g. colony counters, C12M1/34); Compositions therefor; Processes of preparing such compositions · CPC title

  • containing two or more nitrogen atoms (hydrazon dyes -CH=N-N- C09B26/02) · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10676489B2 cover?
Fluorescent chromophores nicknamed BOPHY are provided. The chromophores may be readily synthesized in two steps from readily available reagents via the coupling of a pyrrole aldehyde or ketone with hydrazine, followed by reaction with BF 3 . The resultant symmetric and dimeric tetracycle is comprised of two BF 2 units in six-member chelate rings, appended by pyrrole units on the periphery. The…
Who is the assignee on this patent?
Ziegler Christopher J, Tamgho Ingrid Suzy, Univ Akron
What technology area does this patent fall under?
Primary CPC classification C07F5/022. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 09 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).