A chemical group derived from benzaldehyde that contains a double bond between a benzyl carbon and another atom, used in synthetic chemistry.
From 'benzyl' + '-idene' (suffix indicating a double bond between carbons). Systematic chemical nomenclature from 19th-20th century chemistry.
Benzylidene groups are like molecular Velcro—they easily snap onto other molecules with double bonds, which makes them super useful for 'clicking' molecules together in synthesis.
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