An innovative approach to the synthesis of annelated [a]diaza-anthracenones through tandem cyclization

Tetrahedron Letters

Volumn 45, Issue 30, 2004, Pages 5815-5818

  Sharon, Ashoke ^a   Maulik, Prakas R ^a   Roy, Raja ^a   Ram, Vishnu Ji ^a  

^a CENTRAL DRUG RESEARCH INSTITUTE   (India)

Author keywords

Photocyclization; Reaction mechanism; Ring transformation reactions; X ray diffraction

Indexed keywords

2 PYRONE DERIVATIVE; ANTHRACENE DERIVATIVE; ANTHRAQUINONE DERIVATIVE; CYANIDE; KETENE DERIVATIVE;

ARTICLE; CYCLIZATION; SYNTHESIS;

EID: 3242801207     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.06.015     Document Type: Article

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28. -1, R1=0.0804 for 1644 Fo > 4 sig(Fo) and 0.3330 for all 6204 data. CCDC 233580 contains the supplementary crystallographic data. These data can be obtained free of charge from www.ccdc.cam.uk/conts/retrieving.html [or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge, CB2 1EZ, UK; Fax: (internat.) +44-1223/336-033; E-mail: deposit@ccdc.cam.ac.uk]. Programs: XSCANS [Siemens Analytical X-ray Instrument Inc.: Madison, Wisconsin, USA 1996], SHELXTL-NT [Bruker AXS Inc.: Madison, Wisconsin, USA 1997]