Accession Number:

ADD002059

Title:

Lasing Dyes.

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s):

• Atkins,Ronald F.
• Hammond,Peter R.

Report Date:

1975-11-10

Pagination or Media Count:

8.0

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.

Descriptors:

• *Synthesis(Chemistry)
• Patents
• Coumarins
• Quinolines
• Chemical reactions
• Fluorine compounds

Subject Categories:

• Organic Chemistry
• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE