General microwave-assisted protocols for the expedient synthesis of quinoxalines and heterocyclic pyrazines
作者:Zhijian Zhao、David D Wisnoski、Scott E Wolkenberg、William H Leister、Yi Wang、Craig W Lindsley
DOI:10.1016/j.tetlet.2004.04.144
日期:2004.6
Functionalizedquinoxalines and heterocyclic pyrazines are expediently prepared in excellent yields (69–99%) from common 1,2-diketone intermediates under microwave irradiation. In addition to being general for a variety of aryl/heteroaryl 1,2-diamines and 1,2-diketones, this protocol suppresses the formation of polymeric species, characteristic of traditional thermal conditions.
Polyethylene glycol in water: A simple, efficient and green protocol for the synthesis of quinoxalines
作者:HEMANT V CHAVAN、LAXMAN K ADSUL、BABASAHEB P BANDGAR
DOI:10.1007/s12039-011-0081-8
日期:2011.7
quinoxaline derivatives has been efficiently synthesized in excellent yields under extremely mild conditions using PEG-600 and water. This inexpensive, non-toxic, eco-friendly and readily available system efficiently condensed several aromatic as well as aliphatic 1,2-diketones with aromatic and aliphatic 1,2-diamines to afford the products in excellent yield. Polyethyleneglycol (PEG) can be recovered and
WEPA: a reusable waste biomass-derived catalyst for external oxidant/metal-free quinoxaline synthesis <i>via</i> tandem condensation–cyclization–oxidation of α-hydroxy ketones
作者:Bandameeda Ramesh Naidu、Katta Venkateswarlu
DOI:10.1039/d2gc02386e
日期:——
WEPA, a waste biomass-derived catalyst, was used to synthesize quinoxalines from aryl/heteroaryl 1,2-diamines and α-hydroxy ketones via metal catalyst/added oxidant-free sequential condensation–cyclization–oxidation process.
[EN] PKB INHIBITORS AS ANTI-TUMOR AGENTS<br/>[FR] INHIBITEURS DE LA PKB UTILISES COMME AGENTS ANTITUMORAUX
申请人:IMCLONE SYSTEMS INC
公开号:WO2005007099A2
公开(公告)日:2005-01-27
The invention is directed to biaryl compounds with two six membered rings fused wherein at least one six membered ring is substituted with a thiophenyl or furanyl ring. Useful in the inhibition of PKB kinase, the treatment of cancer, or the inhibition of tumor growth.
Raju, B. China; Ramachandra, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2012, vol. 51, # 5, p. 756 - 759