Process for synthesizing polysubstituted cyclopentadienone derivatives
Title：
Process for synthesizing polysubstituted cyclopentadienone derivatives
Application Number：
 200410037816
Application Date：
 2004/05/10
Announcement Date：
 2005/01/26
Pub. Date：
 2006/07/05
Publication Number：
 1569792
Announcement Number：
 1262527
Grant Date：
 2006-7-5
Granted Pub. Date：
 2006-7-5
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C07C 49/633, C07C 45/00
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Xi Chanjuan, Chen Chao
Key Words：
 polysubstituted, cyclopentadienone derivatives, synthesizing process
Abstract：
 The invention discloses a process for synthesizing polysubstituted cyclopentadienone derivatives which consists of, cooling the alkynes and zirconium or titanium metallic complex dissolved in the solvent to -78 deg. C to -30 deg. C, reacting with organic lithium, then charging cuprous salts and oxalyl chloride for reaction 30-90 min at -20 - 25 deg. C, and conducting quenching reaction to obtain the end product.
Claim：
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PCT：
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