Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1998-01-21
1999-09-28
Bernhardt, Emily
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
544249, 252582, 252587, 359885, 430517, C07D23970, C07D48704, C09B 702
Patent
active
059591056
ABSTRACT:
A dihydroperimidine squarylium compound is represented by the formula (I): ##STR1## in which each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11 and R.sup.12 independently is hydrogen, an alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, an alkenyl group, an alkynyl group or an acyl group; R.sup.1 and R.sup.2, R.sup.3 and R.sup.4, R.sup.5 and R.sup.6, R.sup.7 and R.sup.8, R.sup.9 and R.sup.10 or R.sup.11 and R.sup.12 may be combined with each other to form a five- or six-membered nitrogen-containing heterocyclic ring; R.sup.2 and R.sup.3, R.sup.6 and R.sup.7 or R.sup.10 and R.sup.11 may be combined with each other to form a five- or six-membered aliphatic ring; and n is an integer of 1 to 6. The specification further discloses a mixture of dihydroperimidine squarylium compounds, an infrared absorbing sheet and a silver halide photographic material.
REFERENCES:
patent: 5380635 (1995-01-01), Gomez et al.
patent: 5543086 (1996-08-01), Bertelson et al.
Harada Toru
Yabuki Yoshiharu
Bernhardt Emily
Fuji Photo Film Co. , Ltd.
LandOfFree
Dihydroperimidine squarylium compound and mixture of dihydroperi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dihydroperimidine squarylium compound and mixture of dihydroperi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dihydroperimidine squarylium compound and mixture of dihydroperi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-704818