Lasing Dyes.
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 10, 1975
- Accession Number
- ADD002059
Entities
People
- Peter R. Hammond
- Ronald F. Atkins
Organizations
- United States Department of the Navy