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Pronunciation varies by accent · noun
(organic chemistry) Any of several isomeric tricyclic aromatic heterocycles derived from anthracene by replacement of two CH groups by nitrogen atoms.
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich The annellation of the pyrimidine ring onto alicyclic alkenes has been achieved using Diels-Alder chemistry. 2,4-Dimethoxy-1,3-diazaanthracene (DDA) reacts with Smith’s diene under forcing thermal conditions (sealed tube at 180 °C) to form a mixture of stereoisomeric adducts which can be separated by fractional crystallization.
Use diazaanthracene when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Diazaanthracene means (organic chemistry) Any of several isomeric tricyclic aromatic heterocycles derived from anthracene by replacement of two CH groups by nitrogen atoms.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich The annellation of the pyrimidine ring onto alicyclic alkenes has been achieved using Diels-Alder chemistry. 2,4-Dimethoxy-1,3-diazaanthracene (DDA) reacts with Smith’s diene under forcing thermal conditions (sealed tube at 180 °C) to form a mixture of stereoisomeric adducts which can be separated by fractional crystallization.
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