Substituted -6,7,8,9-tetrahydro-pyrido- and 2H-pyrano [2,3-b][1,

Details Substituted -6,7,8,9-tetrahydro-pyrido- and 2H-pyrano [2,3-b][1, Substituted -6,7,8,9-tetrahydro-pyrido- and 2H-pyrano [2,3-b][1,

1978-03-20

1980-05-13

Raymond, Richard

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 83, C07D47114, C07D49114

Patent

active

042029813

ABSTRACT:
Compounds having the formula: ##STR1## wherein X is selected from the group consisting of NH and O, R is selected from the group consisting of H, CH.sub.3 and phenyl, R' is selected from the group consisting of OCH.sub.3, CF.sub.3 CH.sub.3 and H and R" is selected from the group consisting of H, CH.sub.3 and CH.sub.2 CO.sub.2 C.sub.2 H.sub.5. The compounds are stable, efficient laser dyes.

REFERENCES:
patent: 3891569 (1975-06-01), Schimitschek et al.
Henry et al., J. Heterocyclic Chem., vol. 14 (Oct. 1977), pp. 1109-1114.
Neister, Optical Spectra, Feb. 1977, pp. 34-36.
Schimitschek et al., Optics Communications, vol. 16, No. 3 (1976), pp. 3116.

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