CAN Mediated oxidative addition of 2-hydroxynaphthoquinone to dienes: a facile synthesis of naphthofurandiones
作者:Vijay Nair、P.M Treesa、Davis Maliakal、Nigam P Rath
DOI:10.1016/s0040-4020(01)00700-1
日期:2001.9
2-Hydroxy-1,4-naphthoquinone undergoes CAN mediated oxidative addition to various dienes followed by ring closure yielding corresponding furoquinones. (C) 2001 Elsevier Science Ltd. All rights reserved.
Ceric Ammonium Nitrate (CAN)-Mediated Oxidative Cycloaddition of 1,3-Dicarbonyls to Conjugated Compounds. Efficient Synthesis of Dihydrofurans, Dihydrofurocoumarins, Dihydrofuroquinolinones, Dihydrofurophenalenones, and Furonaphthoquinone Natural Products
作者:Yong Rok Lee、Byung So Kim、Dae Hwan Kim
DOI:10.1016/s0040-4020(00)00839-5
日期:2000.11
Ceric ammonium nitrate-mediated oxidative cycloaddition of 1,3-dicarbonyls to conjugated compounds afforded substituted dihydrofurans, dihydrofurocoumarins, dihydrofuroquinolinones, and dihydrofurophenalenones in moderate yields. This new synthetic method has been applied to the synthesis of furonaphthoquinone natural products. (C) 2000 Elsevier Science Ltd. All rights reserved.
Synthesis, Anti-Proliferative Activity Evaluation and 3D-QSAR Study of Naphthoquinone Derivatives as Potential Anti-Colorectal Cancer Agents
active (1.73 < IC50 < 18.11 μM). The naphtho[2,3-b]thiophene-4,9-dione analogs showed potent cytotoxicity, 8-hydroxy-2-(thiophen-2-ylcarbonyl)naphtho[2,3-b]thiophene-4,9-dione being the compound with the highest potency and selectivity. Our results suggest that the toxicity is improved in molecules with tricyclic naphtho[2,3-b]furan-4,9-dione and naphtho[2,3-b]thiophene-4,9-dione systems 2-substituted