Azulenemethine dyes and an optical recording medium containing t

Details Azulenemethine dyes and an optical recording medium containing t Azulenemethine dyes and an optical recording medium containing t

1991-03-28

1992-11-24

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544142, 544315, 544316, 544318, 544353, 544354, 544372, 546102, 546104, 546172, 546174, 546175, 546176, 546181, 546200, 548123, C09B 2310, C07D20960

Patent

active

051663597

ABSTRACT:
An optical recording medium contains novel azulenemethine dyes of the formula ##STR1## where R is unsubstituted or substituted C.sub.1 -C.sub.6 -alkyl, X.sup..crclbar. is an anion, A.sup..sym. is heterocyclic radical, of the formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, Y, Z and W are as defined, with the proviso that, when A.sup..sym. is a radical of the formula II f, II g, II i or II k, m is 2, A is 1, 2 or 3 and M is 1 or 2.

REFERENCES:
patent: 4508811 (1985-04-01), Gravesteijn et al.
patent: 4548886 (1985-10-01), Katagiri et al.
patent: 4565761 (1986-01-01), Katagiri et al.
patent: 4738908 (1988-04-01), Oguchi et al.
patent: 4782006 (1988-11-01), Nishimura et al.
Journal of Organic Chemistry, USSR, vol. 18, (1982), pp. 380-386 Mikhailenko et al.
Thuillier et al, Bull. Soc. Chem. France, 1959 pp. 1397-1401.
Journal of the American Chemical Society, vol. 83, pp. 2933-2937, (1961) Klingsberg.
Tetrahedron Letters No. 46, pp. 4707-4709, (1967) Treibs.
J. Vac. Sci. Technol, 18 (1), pp. 105-109, Jan./ Feb. 1981 Jipson et al.

Affiliated with

Also associated with

Rating

Azulenemethine dyes and an optical recording medium containing t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Azulenemethine dyes and an optical recording medium containing t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Azulenemethine dyes and an optical recording medium containing t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-922942