Tiemann and Haarmann patent a vanillin synthesis, 1874

Vanillin is the sweet base of the teaching amber accord.

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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 et al. (2025). Transforming a Historical Chemical Synthetic Route for Vanillin Starting from Renewable Eugenol to a Cell-Free Bi-Enzymatic Cascade · 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 the site gives a reconstruction, 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 et al. (2025). Transforming a Historical Chemical Synthetic Route for Vanillin Starting from Renewable Eugenol to a Cell-Free Bi-Enzymatic Cascade · 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 et al. (2025). Transforming a Historical Chemical Synthetic Route for Vanillin Starting from Renewable Eugenol to a Cell-Free Bi-Enzymatic Cascade · 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 et al. (2025). Transforming a Historical Chemical Synthetic Route for Vanillin Starting from Renewable Eugenol to a Cell-Free Bi-Enzymatic Cascade · 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

Our text and structure are CC BY 4.0; quoted source text stays under its owners’ terms.

this record as data: /data/event/tiemann-haarmann-vanillin-1874.json · version 2 · updated 2026-09-30 · confidence A