作者:Yasushi Yokoyama、Toshiya Sagisaka、Yoshiro Yamaguchi、Yayoi Yokoyama、Jitsuo Kiji、Tamon Okano、Akiko Takemoto、Shin-ya Mio
DOI:10.1246/cl.2000.220
日期:2000.3
A fulgide, 3,4-bis[1-(2,5-dimethyl-3-thienyl)ethylidene]-3,4-dihydro-2,5-furandione, was synthesized by Pd-catalyzed carbonylation of the corresponding 2-butyne-1,4-diol derivative. UV-irradiation to the ZZ-form in toluene resulted in the formation of two diastereomeric colored forms by way of EE- and EZ-forms. The colored form from the EE-form was predominant in 90% de.
通过相应的2-丁炔-1,4-二醇衍生物的钯催化羰基化反应,合成了3,4-双[1-(2,5-二甲基-3-噻吩基)亚乙基]-3,4-二氢-2,5-呋喃二酮。在甲苯中用紫外线照射ZZ-形式,通过EE-和EZ-形式形成两种非对映异构体有色形式。来自EE-形式的彩色形式占90%。