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Synthese von Sieben‐ und Achtring‐anellierten Pyridinen durch “inverse” intramolekulare Diels‐Alder‐Reaktion mit Trifluormethyl‐substituierten 1,2,4‐Triazinen
Author(s) -
John Rainer,
Seitz Gunther
Publication year - 1990
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19901230125
Subject(s) - chemistry , bicyclic molecule , cycloaddition , intramolecular force , trifluoromethyl , intramolecular reaction , ring (chemistry) , medicinal chemistry , stereochemistry , alkyne , diels–alder reaction , catalysis , organic chemistry , alkyl
Synthesis of Seven‐ and Eight‐Membered Ring‐Annulated Pyridines by “Inverse” Intramolecular Diels‐Alder Reaction with Trifluoromethyl‐Substituted 1,2,4‐Triazines Intramolecular [4 + 2] cycloaddition reactions with inverse electron demand of trifluoromethyl‐substituted 1,2,4‐triazines carrying 7‐ or 8‐membered o‐alkyne side‐chain dienophiles ( 3,8,12 ) lead to the synthesis of bicyclic pyridines with annulated heterocyclic seven‐ ( 5, 9, 13‐15 ) or eight‐membered rings ( 19, 22, 23, 26 ).