Photochromic diaryl ethylene compound and its prepn and use
Title:
Photochromic diaryl ethylene compound and its prepn and use
Application Number:
02100500
Application Date:
2002/02/06
Announcement Date:
2003/08/20
Pub. Date:
Publication Number:
1436832
Announcement Number:
1206308
Grant Date:
2005-6-15
Granted Pub. Date:
2005-6-15
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
C09K 9/02
Applicant(s):
Tsinghua Univ.
Inventor(s):
Zhang Fushi, Pu Shouzhi, Guo Haobo
Key Words:
Photochromic, diaryl ethylene compound, prepn, use
Abstract:
THe photochromic diaryl ethylene compound is prepared through the steps of: brominating 2-methyl thiofuran; reaction with tributyl borate to produce 2-methyl-3-bromo-5-thiofuran borate; coupling reaction to connect benzyl group and thiofuran ring; and reaction with perfluorocyclopentene to produce target molecule. The compound may be used widely in superdensity erasable light information storing material and light controlled switch material.
Claim:
Priority:
PCT:
LegalStatus:

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
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