1023743-68-1Relevant articles and documents
Iodine-mediated oxidative annulation for one-pot synthesis of pyrazines and quinoxalines using a multipathway coupled domino strategy
Viswanadham, K. K. Durga Rao,Prathap Reddy, Muktapuram,Sathyanarayana, Pochampalli,Ravi, Owk,Kant, Ruchir,Bathula, Surendar Reddy
, p. 13517 - 13520 (2014)
An efficient iodine-mediated oxidative annulation of aryl acetylenes-arylethenes-aromatic ketones with 1,2-diamines for the synthesis of pyrazines and regioselective synthesis of quinoxalines is presented. A multipathway coupled domino approach has been developed for the one-pot synthesis of 1,4-diazines with high functional group compatibility.
A catalyst free, one pot approach for the synthesis of quinoxaline derivatives via oxidative cyclisation of 1,2-diamines and phenacyl bromides
Kumar, Kapil,Mudshinge, Sagar Ravso,Goyal, Sandeep,Gangar, Mukesh,Nair, Vipin A.
supporting information, p. 1266 - 1271 (2015/03/04)
A simple, efficient and eco-friendly method has been developed for quinoxaline synthesis from inexpensive and readily available diamines and phenacyl bromides by catalyst- and additive-free protocol.
Safe and reliable synthesis of diazoketones and quinoxalines in a continuous flow reactor
Martin, Laetitia J.,Marzinzik, Andreas L.,Ley, Steven V.,Baxendale, Ian R.
, p. 320 - 323 (2011/03/23)
A flow method for the synthesis of aliphatic and aromatic diazoketones from acyl chloride precursors has been developed and used to prepare quinoxalines in a multistep sequence without isolation of the potentially explosive diazoketone. The protocol showcases an efficient in-line purification using supported scavengers with time-saving and safety benefits and in particular a reduction in the operator's exposure to carcinogenic phenylenediamines.
A mild and convenient synthesis of quinoxalines via cyclization-oxidation process using DABCO as catalyst
Meshram,Santosh Kumar,Ramesh,Chennakesava Reddy
experimental part, p. 2580 - 2585 (2010/07/04)
An efficient and general method has been described for the synthesis of quinoxalines by the reaction of 1,2-diamines with phenacyl bromides in the presence of DABCO. The method is suitable for the preparation of functionalized quinoxalines.
First example of Cu(OTf)2-catalyzed synthesis of quinoxalines from α-diazoketones and aryl 1,2-diamines
Yadav,Subba Reddy,Gopala Rao,Narsaiah
, p. 348 - 349 (2008/09/20)
α-Diazoketones undergo smooth coupling with aryl 1,2-diamines in the presence of 10 mol % of copper(II) triflate to provide the corresponding 2-alkyl- or 2-aryl-quinoxalines in excellent yields with high selectivity. Rh2(OAc)4 is als