55104-63-7Relevant articles and documents
Cobalt(II)-based Metalloradical Activation of 2-(Diazomethyl)pyridines for Radical Transannulation and Cyclopropanation
Roy, Satyajit,Das, Sandip Kumar,Chattopadhyay, Buddhadeb
supporting information, p. 2238 - 2243 (2018/02/19)
A new catalytic method for the denitrogenative transannulation/cyclopropanation of in-situ-generated 2-(diazomethyl)pyridines is described using a cobalt-catalyzed radical-activation mechanism. The method takes advantage of the inherent properties of a CoIII-carbene radical intermediate and is the first report of denitrogenative transannulation/cyclopropanation by a radical-activation mechanism, which is supported by various control experiments. The synthetic benefits of the metalloradical approach are showcased with a short total synthesis of (±)-monomorine.
Iodine-catalyzed [3+2] cyclization of 2-pyridylesters and chalcones: metal-free approach for the synthesis of substituted indolizines
Reddy, N. Naresh Kumar,Donthiri, Ramachandra Reddy,Ravi, Chitrakar,Adimurthy, Subbarayappa
, p. 3243 - 3246 (2016/07/12)
A transition metal-free iodine catalyzed synthesis of indolizine derivatives through [3+2] cyclization of 2-pyridylesters and chalcones has been described. The method is efficient to synthesize a variety of substituted indolizines including hetero aromati
Development of a scaleable synthesis of a 3-aminopyrazinone acetamide thrombin inhibitor
Ashwood, Michael S.,Alabaster, Ramon J.,Cottrell, Ian F.,Cowden, Cameron J.,Davies, Antony J.,Dolling, Ulf H.,Emerson, Khateeta M.,Gibb, Andrew D.,Hands, David,Wallace, Debra J.,Wilson, Robert D.
, p. 192 - 200 (2013/09/04)
A scaleable route to 2-{3-[(2,2-difluoro-2-(2-pyridyl)ethyl)-animo]-6- chloro-2-oxohydropyrazinyl}-N-(3-fluoro(2-pyridyl))-methyl]acetamide 1 is described in which various scaleup issues were addressed to provide a safe, efficient, and robust route for th
