أرشيف الوسم : double

allenes

Compounds that contain the group >C=C=C<, in which three carbon atoms are linked by two adja­cent double bonds. The outer carbon atoms are each linked to two other atoms or groups by single bonds. The simplest example is 1,2-propadiene, CH2CCH2 . Allenes are dienes with typical reactions of alkenes. Under basic conditions. they often convert to alkynes. In an allene, …

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