A highly regioselective reaction of N-fluoropyridinium salts with stabilized sulfur, oxygen, and nitrogen nucleophiles: A convenient route to 2-substituted pyridines
2-Substituted pyridines are efficiently obtained by the reactions of N- fluoropyridinium tetrafluoroborate or triflate with anions derived from benzenethiols, phenols, azoles, cyanamide, and with azide anion. The results are consistent with a nucleophile addition at the position 2 of the N- fluoropyridinium cation as the major reaction pathway.
Kiselyov,Strekowski
p. 1361 - 1364
(2007/10/02)
New Synthesis of s-Triazolopyridines and s-Triazoloisoquinoline
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Lin, Yang-i,Lang, S.A.
p. 3123 - 3124
(2007/10/02)
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