EXPERIMENTS DIRECTED TOWARDS THE SYNTHESIS OF ANTHRACYCLINONES .19. ELABORATION OF 2-FORMYLQUINIZARIN THROUGH A WITTIG REACTION

Citation
Pj. Boniface et al., EXPERIMENTS DIRECTED TOWARDS THE SYNTHESIS OF ANTHRACYCLINONES .19. ELABORATION OF 2-FORMYLQUINIZARIN THROUGH A WITTIG REACTION, Australian Journal of Chemistry, 47(3), 1994, pp. 441-449
Citations number
16
Categorie Soggetti
Chemistry
ISSN journal
00049425
Volume
47
Issue
3
Year of publication
1994
Pages
441 - 449
Database
ISI
SICI code
0004-9425(1994)47:3<441:EDTTSO>2.0.ZU;2-O
Abstract
Reaction of 2-formylquinizarin dimethyl ether (3) with the dimethoxy y lide (6) gives an alpha,beta-unsaturated ester (8) which on hydrogenat ion, reduction and methylation gives the tetramethoxyanthracene dieste r (18). When linked to work by Dotz and Popall this sequence provides a route to (+/-)-4-demethoxydaunomycinone.