Asymmetric diaryl ethylene photochromic compound, and its preparing method and use
Title：
Asymmetric diaryl ethylene photochromic compound, and its preparing method and use
Application Number：
 02125272
Application Date：
 2002/07/22
Announcement Date：
 2004/01/28
Pub. Date：
Publication Number：
 1470512
Announcement Number：
 1205206
Grant Date：
 2005-6-8
Granted Pub. Date：
 2005-6-8
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C07D409/08, C09K 11/06
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Zhang Xiashi, Sun Fan, Yuan Peng
Key Words：
 Asymmetric, diaryl ethylene, photochromic compound, preparing method, use
Abstract：
 The present invention discloses a kind of asymmetric diaryl ethylene photochromic compound, its preparation method and application. Said invention provides its molecular structure formula, and its preparation method includes: 1) making equivalent perfluorocyclopentene and 5-lithium-2-substituent-4- methyl thiophene or benzothiophene implement reaction to prepare correspondent monosubstituted perfluorocyclopentene; and 2). cooling 3-bromine-5-substituent-2 methyl thiophene to -76 deg.C¡«-80 deg.C, adding n-Buli, making low-temp. reaction for 0.5-1.5 hr, then adding the equivalent monosubstituted perfluorocyclopentene obtained by step 1, reacting for 1-3 hr. and separating to obtain the invented product which can be used as erase write optical storage media and molecular switch, etc.
Claim：
Priority：
PCT：
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