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Pronunciation varies by accent · noun
(organic chemistry) Any of several isomeric unsaturated alicyclic hydrocarbons having seven carbon atoms and two double bonds; any derivative of such compound.
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich Decomposition of 4 in the presence of cis-piperylene at room temperature results in the stereocontrolled formation of trans-cycloheptadiene 27 in 90% ee (96% ee at -78 °C).
Use cycloheptadiene when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Cycloheptadiene means (organic chemistry) Any of several isomeric unsaturated alicyclic hydrocarbons having seven carbon atoms and two double bonds; any derivative of such compound.
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 Decomposition of 4 in the presence of cis-piperylene at room temperature results in the stereocontrolled formation of trans-cycloheptadiene 27 in 90% ee (96% ee at -78 °C).
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