Regioselective synthesis of 1,8-diazaanthracene-9,10-dione by tandem directed ortho-metallation/metal-halogen exchange
作者:Mercedes Villacampa、Elena de la Cuesta、Carmen Avendaño
DOI:10.1016/0040-4020(94)01004-j
日期:1995.1
Tandem directed ortho-metallation/metal-halogen exchange reactions between N,N-diethyl-pyridine-2-carboxamide and 2-bromopyridine-3-carbaldehyde yield 1,8-diazaanthracene-9,10-dione. This compound has been further functionalized to its N-oxide and the corresponding 2,9,10-trione derivative, structurally related to the antibiotic diazaquinomycin A.