Photoisomerizable compounds

Details Photoisomerizable compounds Photoisomerizable compounds

2005-02-01

2005-02-01

Wu, Shean C. (Department: 1756)

Compositions

Liquid crystal compositions

C252S299610, C252S299620, C252S299640, C252S299670, C428S001100, C428S001310, C540S467000, C540S482000, C540S546000, C540S604000, C540S611000, C546S183000, C546S290000, C549S009000, C549S028000, C549S466000, C549S468000, C549S469000, C549S477000, C548S484000

Reexamination Certificate

active

06849203

ABSTRACT:
The invention relates to photoisomerizable compounds of formula Iwherein A, Z, L, R, R1, k, m and r are defined herein.

REFERENCES:
patent: 02409253 (1992-08-01), None
patent: 4233520 (1992-08-01), None
patent: WO 9904789 (1999-02-01), None
T. Yamaguchi; T. Seki; T. Takashi; K. Ichimura “Photochromism of Hemithioindigo Derivatives I. Preparation and Photochromic Properties in Organic Solvents”, The Bulletin of the Chemical Society of Japan, 65, 649-656 (1992).*
B.A. Brady; J. A. Kennedy; W.I. O'Sullivan “The Configuration of Aurones”, Tetrahedron, 29, 359-362 (1973).*
A. Levai; C. Nemes; T. Patonay “Synthesis of New Z-3-Arylidenechromanones by the Photoisomerization of (E)-3-Arylidenechromanones”, Heterocyclic Communications, 5(5) 441-444 (1999).*
A Riahi; C. Thorey; F. Henin; J. Muzart “2-Alkylidene-1-tetralones from Aldol Condensations”, Synthetic Communications, 28(23), 4339-4344 (1998).*
G. Toth; J. Halasz; A. Levai; C. Nemes; T. Patonay “UV-induced Isomerization and Ring Transformation of (E)-3-arylidene-1-thiochromanones and -1-thioflavanones”, Journal of the CHemical Society, Perkins Trans. 2, 547-550 (1996).*
Yamaguchi et al., “Photochromism of hemithioindigo derivatives. I. Preparation and photochromic properties in organic solvents,”Bulletin of the Chemical Society of Japan, vol. 65, No. 3, 1992, pp. 649-656, XP002250487.
Seki et al., “Photochromism of hemithioindigo derivatives. II. Photochromic behaviors in bilayer membranes and related systems,”Bulletin of the Chemical Society of Japan, vol. 65, No. 3, 1992, pp. 657-663, XP002250488.
Makoto, “Nonlinear optical material containing benzalindanone compound,”Chemical Abstracts, vol. 118, No. 6, (Feb. 8, 1993), abstract No. 48951.
Search Report for EP 02 005204, completed Aug. 7, 2003.

Affiliated with

Also associated with

Rating

Photoisomerizable compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photoisomerizable compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoisomerizable compounds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3489504