145243-92-1Relevant academic research and scientific papers
Rapid access to pyrazolo[3,4-c]pyridines via alkyne annulation: Limitations of steric control in nickel-catalyzed alkyne insertions
Heller, Stephen T.,Natarajan, Swaminathan R.
, p. 4947 - 4950 (2007)
Polyfunctionalized pyrazolo[3,4-c]pyridines were readily prepared by the annulation of alkynes with tert-butyl 4-iodopyrazolocarboximines. The reaction was found to be catalyzed by both NiBr2(PPh3) 2/Zn or PdCl2
Substituted Quinone Synthesis by Palladium-Copper Cocatalyzed Cross-Coupling of Stannylquinones with Aryl and Heteroaryl Iodides
Liebeskind, Lanny S.,Riesinger, Steven W.
, p. 408 - 413 (1993)
A general and high-yielding route to a variety of aryl- and heteroaryl-substituted quinones is now available via the palladium-copper cocatalyzed cross-coupling of stannylquinones with aryl and heteroaryl iodides.Using this technology a number of novel aromatic- and heteroaromatic-substituted quinones were produced.Mechanistic insight is presented into the various catalytic systems used.
