Synthesis of diazaquinomycin a and b: the first double knorr cyclization
作者:T.Ross Kelly、Jeffrey A. Field、Qun Li
DOI:10.1016/0040-4039(88)85288-2
日期:1988.1
The first syntheses of diazaquinomycin A (1) and diazaquinomycinB (11) are described. The key reaction is the tandem doubleKnorr cyclizalion/oxidation of 10 to 1 (Eq. 1)
KELLY, T. ROSS;FIELD, JEFFREY A.;LI, QUN, TETRAHEDRON LETT., 29,(1988) N 29, 3545-3546
作者:KELLY, T. ROSS、FIELD, JEFFREY A.、LI, QUN
DOI:——
日期:——
Scope and Optimization of the Double Knorr Cyclization:
Synthesis of Novel Symmetrical and Unsymmetrical Tricyclic
1,8-Diazaanthraquinones
作者:Dianqing Sun、Allan Prior
DOI:10.1055/s-0036-1589134
日期:2018.2
thereof via doubleKnorrcyclization of di-β-ketoanilide precursor substrates is reported. The scope and generality of the doubleKnorrcyclization were investigated along with an optimization study. The doubleKnorrcyclization was found to be sensitive to steric bulk on precursor substrates. In addition, the presence of a 5-hydroxy group on the 1,3-di-β-ketoanilide facilitated the doubleKnorr cyclization