In organic and organometallic chemistry, an organyl group (commonly denoted by the letter "R") is an organic substituent with one or sometimes more free valence electrons at a carbon atom. The term is often used in chemical patent literature to protect claims over a broad scope.
Examples Acetonyl group Acyl group (e.g. acetyl group, benzoyl group) Alkyl group (e.g., methyl group, ethyl group) Alkenyl group (e.g., vinyl group, allyl group) Alkynyl group (e.g., propargyl group, ethynyl group) Benzyloxycarbonyl group (Cbz) tert-butoxycarbonyl group (Boc) Carboxyl group
References