Reaction of dimethyl acetylenedicarboxylate 2a with azulene 1 (boiling tetralin, 207.6 °C) leads to the heptalene-dicarboxylic acid dimethyl ester 7a[¹]
Methyl heptalenecarboxylates of type A and B with π(1) and π(2) substituents in 1,4-relation (Scheme...
The cyclopentacyclononene derivative (3). the first compound to contain this ring system and also th...
[[abstract]]Reaction of diethyl azulene-1,3-dicarboxylate with potassium cyanide in dimethoxyethane ...
Azulenes and acetylenedicarboxylates react under acid catalysis (Brønsted or Lewis) and form (2aRS,8...
Reaction of dimethyl acetylenedicarboxylate 2a with azulene 1 (boiling tetralin, 207.6 °C) leads to ...
By Hafner's synthesis, dimethyl heptalene-4,5-dicarboxylates are easily available from azulenes and ...
Methyl derivatives of the still unknown hydrocarbon (1a) azuleno[8,8a,1,2-def]heptalene (dicyclohept...
Similarly to pentalene, azulene[¹], and cyclopent[cd]azulene[²], the readily accessible aceheptylen...
The two lowest homologs of the annulene series, i. e. cyclobutadiene and benzene, are known to under...
In an attempt to synthesise azuleno[2,1-a]azulene (1), Cu+ ion-catalysed reaction of diazomethane wi...
Eine überraschend einfache Heptalen-Synthese besteht in der Umsetzung von Azulen (1) mit Acetylendic...
The polyphosphoric acid induced intramolecular acylation of lactones has been applied to the synthes...
The polyphosphoric acid induced intramolecular acylation of lactones has been applied to the synthes...
The cyclopentacyclononene derivative (3). the first compound to contain this ring system and also th...
Introduction of sugar side chains to azulene derivatives would raise physiological activities of azu...
Methyl heptalenecarboxylates of type A and B with π(1) and π(2) substituents in 1,4-relation (Scheme...
The cyclopentacyclononene derivative (3). the first compound to contain this ring system and also th...
[[abstract]]Reaction of diethyl azulene-1,3-dicarboxylate with potassium cyanide in dimethoxyethane ...
Azulenes and acetylenedicarboxylates react under acid catalysis (Brønsted or Lewis) and form (2aRS,8...
Reaction of dimethyl acetylenedicarboxylate 2a with azulene 1 (boiling tetralin, 207.6 °C) leads to ...
By Hafner's synthesis, dimethyl heptalene-4,5-dicarboxylates are easily available from azulenes and ...
Methyl derivatives of the still unknown hydrocarbon (1a) azuleno[8,8a,1,2-def]heptalene (dicyclohept...
Similarly to pentalene, azulene[¹], and cyclopent[cd]azulene[²], the readily accessible aceheptylen...
The two lowest homologs of the annulene series, i. e. cyclobutadiene and benzene, are known to under...
In an attempt to synthesise azuleno[2,1-a]azulene (1), Cu+ ion-catalysed reaction of diazomethane wi...
Eine überraschend einfache Heptalen-Synthese besteht in der Umsetzung von Azulen (1) mit Acetylendic...
The polyphosphoric acid induced intramolecular acylation of lactones has been applied to the synthes...
The polyphosphoric acid induced intramolecular acylation of lactones has been applied to the synthes...
The cyclopentacyclononene derivative (3). the first compound to contain this ring system and also th...
Introduction of sugar side chains to azulene derivatives would raise physiological activities of azu...
Methyl heptalenecarboxylates of type A and B with π(1) and π(2) substituents in 1,4-relation (Scheme...
The cyclopentacyclononene derivative (3). the first compound to contain this ring system and also th...
[[abstract]]Reaction of diethyl azulene-1,3-dicarboxylate with potassium cyanide in dimethoxyethane ...
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