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 : 10 Nov 1975

Pagination or Media Count : 8

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