The ringclosingmetathesisreaction in the presence of Grubbs catalyst was demonstrated using several ionic liquids to synthesize a range of macrocyclic tetralactones having ring size of 19 to 31 membered with different spacers. The ionic liquid [mmim][PF6] was found to be an excellent solvent and the recovery of the catalyst was demonstrated. X-ray analysis of a representative macrocyclic tetralactone
AQUEOUS COMPOSITION FOR PLASTICISING PAINT PRIOR TO STRIP
申请人:Eco Solutions Limited
公开号:EP0869997B1
公开(公告)日:2001-03-14
A Fluorescent Compound from the Exuviae of the Scorpion, <i>Liocheles australasiae</i>
作者:Yusuke Yoshimoto、Masato Tanaka、Masahiro Miyashita、Mohammed Abdel-Wahab、Alhussin M. A. Megaly、Yoshiaki Nakagawa、Hisashi Miyagawa
DOI:10.1021/acs.jnatprod.9b00972
日期:2020.2.28
types of fluorescentcompounds have been identified in scorpions, but it has been assumed that other unknown compounds may be responsible for the fluorescence. In this study, we isolated a fluorescentcompoundfrom the exuviae of the scorpion Liocheles australasiae identified as a macrocyclic diphthalate ester with a molecular mass of 496.2 Da. The same compound was also detected in extracts from four