The chemical reactions and pathways resulting in the formation of primary alcohols. A primary alcohol is any alcohol in which a hydroxy group, -OH, is attached to a saturated carbon atom which has either three hydrogen atoms attached to it or only one other carbon atom and two hydrogen atoms attached to it. [ GOC:mah ]
Synonyms: primary alcohol biosynthesis primary alcohol synthesis primary alcohol formation primary alcohol anabolism monohydric alcohol biosynthetic process