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para-anisyl

|pa-ra-an-i-syl|

C2

/ˌpærəˈænɪsɪl/

para-position anisyl substituent (4-methoxybenzyl/phenyl group)

Etymology
Etymology Information

'para-anisyl' is formed from the chemical prefix 'para-' (from Greek 'para', used to denote the 1,4- position) plus 'anisyl', where 'anisyl' is derived from 'anisole' (the methoxybenzene family) with the radical-forming suffix '-yl'.

Historical Evolution

'anisyl' ultimately traces to 'anisole', named after Latin/French 'anis' (anise) because of a similar aroma; chemists added the Neo-Latin/chemical suffix '-yl' to indicate a radical or substituent. 'para-' (Greek) was combined with 'anisyl' in modern chemical nomenclature to specify the 1,4- substitution pattern, producing 'para-anisyl' or abbreviated 'p-anisyl'.

Meaning Changes

Originally related to the anise-like scent of compounds (via 'anis'/'anisole'), the term evolved into a precise chemical name indicating a methoxy-substituted benzyl/phenyl radical at the para position; its contemporary use is structural rather than aromatic.

Meanings by Part of Speech

Noun 1

a chemical substituent or radical derived from anisole located at the para (1,4) position; commonly used to refer to the p-anisyl group (often 4-methoxybenzyl or, in context, 4-methoxyphenyl depending on nomenclature).

The synthesis used a para-anisyl chloride as the electrophile to introduce a p-methoxybenzyl substituent.

Synonyms

p-anisylp-anisyl group4-methoxybenzyl (in benzyl contexts)4-methoxyphenyl (in aryl contexts)

Adjective 1

describing a molecule that bears an anisyl substituent at the para position (e.g., para-anisyl alcohol = 4-methoxybenzyl alcohol).

The para-anisyl derivative showed different reactivity compared with the meta-substituted isomer.

Synonyms

p-anisyl-substitutedpara-p-methoxybenzyl (descriptive)

Last updated: 2025/12/05 07:41