Lasing Dyes.

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Abstract:

In this patent application a suitable hydroxy-1,2,3,4-tetrahydroquinoline either 7-hydroxy or 5-hydroxy is reacted with ethyl-4,4,4-trifluoroacetoacetate to produce either 2-keto-4-trifluoromethyl-6,7,8,9-tetrahydro-2H-pyrano 3,2-g-quinoline if 7-hydroxy-1,2,3,4-tetrahydroquinoline is the reactant or 2-keto-4-trifluoromethyl-7,8,9,10-tetrahydro-2H-pyrano 3,2-f-quinoline if 5-hydroxy-1,2,3,4-tetrahydroquinoline is the reactant. Also, m-aminophenol is reacted with ethyl-4,4,4-trifluoro-acetoacetate to produce 7-amino-4-trifluoromethyl coumarin. The compounds produced are useful as laser dyes.

Author(s):
Atkins, Ronald F. ; Hammond, Peter R.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON D C
Descriptive Note:
Patent Application,
Pagination:
0008

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Government-owned Invention Available For Licensing. Copy Of Application Available Ntis.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-630 591
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Synthesis(Chemistry), Patents, Coumarins, Quinolines, Chemical reactions, Fluorine compounds
Field(s)/Group(s):
Organic Chemistry, Lasers and Masers
Keyword(s):
*Patent applications, *Coumarin amino trifluoro, *Pyranoquinoline tetrahydro trifluoromethyl, Fluorine organic compounds, PAT CL 260 343 22, Laser dyes
Report Date:
1975 Nov 10