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Pyrimidine

Pyrimidine (C4H4N2; /pɪˈrɪ.mɪˌdiːn, paɪˈrɪ.mɪˌdiːn/) is an aromatic, heterocyclic, organic compound similar to pyridine (C5H5N). One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has nitrogen atoms at positions 1 and 3 in the ring.: 250 The other diazines are pyrazine (nitrogen atoms at the 1 and 4 positions)…

History, Occurrence and history & Chemical properties

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Synthesis

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Pyrimidine

Nodes104
Edges103
Triples52
Avg. degree1.98
Density0.019231
Components1

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Pyrimidine

Top relations

related to history · 9
Pyrimidine → Although, B1, Colman, Gabriel, Grimaux, HIV, It, Pinner, The
related to Prebiotic synthesis of pyrimidine nucleotides · 8
Pyrimidine → Becker, Complex, Darwinian, In, Purine, RNA, The RNA, Thus
related to Chemical properties · 7
Pyrimidine → Albert, An, Like, Per, Substitution, Therefore, These
related to Nucleotides · 5
Pyrimidine → DNA, In DNA, RNA, Three, Thus
related to Reactions · 5
Pyrimidine → Because, Electrophilic C-substitution, Mono-N-oxidation, Nitration, Protonation
related to Theoretical aspects · 5
Pyrimidine → DNA, In March, NASA Ames, PAHs, RNA
related to Nomenclature · 3
Pyrimidine → For, However, The
related to Synthesis · 2
Pyrimidine → As, Primary
see also · 1
Pyrimidine → ANRORC

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Important terminology

pyrimidines rna thymine uracil cytosine derivatives ring also nitrogen pyridine electrophilic dna purine found form reaction three atoms synthesis reactions

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
barbituratesinstance ofIt is also found in many synthetic compounds0.80text
the HIV drug zidovudineinstance ofIt is also found in many synthetic compounds0.80text
alloxan were known in the early 19th centuryinstance ofAlthough pyrimidine derivatives0.80text
a laboratory synthesis of a pyrimidine was not carried out until 1879instance ofAlthough pyrimidine derivatives0.80text
when Grimaux reported the preparation of barbituric acid from ureainstance ofAlthough pyrimidine derivatives0.80text
malonic acid in the presence of phosphorus oxychlorideinstance ofAlthough pyrimidine derivatives0.80text
RNA must have emerged from relatively small molecules whose reactivity was governed by physico-chemical processesinstance ofComplex molecules0.80text
Pyrimidinerelated to Chemical propertiesPer0.60section
Pyrimidinerelated to Chemical propertiesAlbert0.60section
Pyrimidinerelated to Chemical propertiesSubstitution0.60section
Pyrimidinerelated to Chemical propertiesThese0.60section
Pyrimidinerelated to Chemical propertiesLike0.60section

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