Title:
NORBONADIENE-QUADRICYCLANE DERIVATIVE AND OPTICAL RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP3694776
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject new compound capable of improving a recording capacity and writing and erasing without being influenced by the glass transition temperature of a matrix resin, useful for an optical recording medium.
SOLUTION: This chiral norbonadiene-quadricyclane derivative is shown by formula I [R1 is H, an aliphatic or alicyclic hydrocarbon group; X is a H, a halogen, cyano or the like; Y is Ar (Ar is a halogen, cyano or the like) or a CO-Ar] of formula I or formula II such as methyl-3-(1-naphthyl) bicyclo[2,2,1]hepta-2,5-diene-2-carboxylate. The compounds of formula I and formula II can be subjected to a normal and reverse reactions with light rays. The chiral compound of formula I or formula II can be synthesized by known various reaction means. For example, cyclopentadiene and methyl-3-(1-naphthyl) propionate are subjected to a Diels-Alder reaction. Consequently a recording medium for increasing a recording capacity can be expected.
Inventors:
Nishino Hideo
Yoshihisa Inoue
Yoshihisa Inoue
Application Number:
JP27946798A
Publication Date:
September 14, 2005
Filing Date:
September 14, 1998
Export Citation:
Assignee:
Japan Science and Technology Agency
International Classes:
G11B7/244; B41M5/26; C07C69/753; C07C69/757; G11B7/24; (IPC1-7): C07C69/753; B41M5/26; C07C69/757; G11B7/24
Domestic Patent References:
| JP3285941A | ||||
| JP57147577A | ||||
| JP57149251A |
Attorney, Agent or Firm:
Eiji Saegusa