SYNTHESIS OF UNNATURAL HYDROXYANTHRAQUINONES - EXPERIMENTS TOWARDS TOTAL SYNTHESIS OF PRADIMICINONE

Citation
Kvsn. Murty et al., SYNTHESIS OF UNNATURAL HYDROXYANTHRAQUINONES - EXPERIMENTS TOWARDS TOTAL SYNTHESIS OF PRADIMICINONE, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 36(2), 1997, pp. 126-132
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
03764699
Volume
36
Issue
2
Year of publication
1997
Pages
126 - 132
Database
ISI
SICI code
0376-4699(1997)36:2<126:SOUH-E>2.0.ZU;2-0
Abstract
The phthalide sulfone 5 has been prepared from readily available ester 6 in four steps on multigram scales. This has been utilized in anioni c [4 + 2] cycloaddition with a few cyclohexenones (12-14) to obtain an thraquinones (18-26) in good yields, compound 21 being a potential int ermediate for pradimicinone 1.