Carboxamidation of pyridines by the system of elemental fluorine- carbonitrile-water: A useful alternative to the chichibabin amination
The title reaction with pyridine, 4-methylpyridine, 3-methylpyridine, 3- bromopyridine, nicotinonitrile, and quinoline yields 2-carboxamido derivatives regioselectively. Isoquinoline is amidated at position 1.
Kiselyov,Strekowski
p. 2387 - 2392
(2007/10/02)
A new convergent route to 1-substituted ellipticines
Migration du lithium en serie pyridinique: double catalyse et reformage. Acces aux derives de la bromo-2 lithio-3 pyridine et des bromo-4 halogeno-2 lithio-3 pyridines
The lithium of an organolithium-pyridinic derivative can be moved from one position to an another by an intermolecular reaction.Two new reactions are possible for pyridinic organic synthesis: the isomerisation of any lithio derivative to a more stable one, and a reaction that transforms a mixture of various bromo-lithio derivatives into a single one.The processes involved and the experimental tools used are described in terms of the 2-bromo-3-lithio- and 4-bromo-2-halogeno-3-lithiopyridines derivatives synthesis.
Mallet, Marc,Branger, Gilles,Marsais, Francis,Queguiner, Guy
p. 319 - 332
(2007/10/02)
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