Tiemann and Haarmann patent a vanillin synthesis, 1874

Vanillin is the sweet base of the teaching amber accord.

Read the essay

The record

Each field carries its evidence: open a chip for the source, the quoted words and the confidence. A field with nothing behind it says so and stays empty.

Date

1874 (year)

documented

In 1874, more than 150 years ago, … chemical synthesis of vanillin 3 was patented by Ferdinand Tiemann and Wilhelm Haarmann starting from coniferin.

VNL-1 · Lanfranchi E, et al · read 2026-09-30

confidence A

Label

documented (a source states it)

house label

the house’s own reading, labelled as such

one of the four labels of the Reconstruction Lab (A §6.4), chosen from what the cited source itself says

confidence B

Kind

synthesis

house classification

the house’s own reading, labelled as such

the house’s grouping of events for the timeline

confidence B

What happened

Ferdinand Tiemann and Wilhelm Haarmann patent a chemical synthesis of vanillin, starting from coniferin.

documented

In 1874, more than 150 years ago, … chemical synthesis of vanillin 3 was patented by Ferdinand Tiemann and Wilhelm Haarmann starting from coniferin.

VNL-1 · Lanfranchi E, et al · read 2026-09-30

confidence A

Place

not on record

not on record

no place on record for this event

People

• Ferdinand Tiemann (chemist)
  documented

  In 1874, more than 150 years ago, … chemical synthesis of vanillin 3 was patented by Ferdinand Tiemann and Wilhelm Haarmann starting from coniferin.

  VNL-1 · Lanfranchi E, et al · read 2026-09-30

  confidence A

• Wilhelm Haarmann (chemist)
  documented

  In 1874, more than 150 years ago, … chemical synthesis of vanillin 3 was patented by Ferdinand Tiemann and Wilhelm Haarmann starting from coniferin.

  VNL-1 · Lanfranchi E, et al · read 2026-09-30

  confidence A

Molecules

• vanillin

Teaching accords

• An amber (the perfumer’s, not the resin)

Sources

1. VNL-1 · Lanfranchi E, et al. Transforming a Historical Chemical Synthetic Route for Vanillin Starting from Renewable Eugenol to a Cell-Free Bi-Enzymatic Cascade. ChemSusChem. 2025;18(11):e202500387. doi.org/10.1002/cssc.202500387 · read 2026-09-30 · CC BY 4.0

These records are published under CC BY 4.0.

this record as data: /data/event/tiemann-haarmann-vanillin-1874.json · version 1 · updated 2026-09-30 · confidence A