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Pronunciation varies by accent · noun
(organic chemistry) A methylene group attached by a double bond to the outside of a ring.
Furthermore, the 1 H NMR spectrum of 1 also exhibited the presence of a 2″-isopropenyl dihydrofuran ring—a methyl group singlet signal at δ H 1.72 (3H, s, H-5″) and two broad singlets for an exomethylene group signal at δ H 4.82 (1H, s, Ha-4″) and 5.03 (1H, s, Hb-4″).
Use exomethylene when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Exomethylene means (organic chemistry) A methylene group attached by a double bond to the outside of a ring.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Furthermore, the 1 H NMR spectrum of 1 also exhibited the presence of a 2″-isopropenyl dihydrofuran ring—a methyl group singlet signal at δ H 1.72 (3H, s, H-5″) and two broad singlets for an exomethylene group signal at δ H 4.82 (1H, s, Ha-4″) and 5.03 (1H, s, Hb-4″).
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