Onion essential oil chemistry. cis- and trans-2-mercapto-3,4-dimethyl-2,3-dihydrothiophene from pyrolysis of bis(1-propenyl) disulfide

DOI: 10.1016/S0040-4039(00)97788-8

Source and publish data:

Tetrahedron Letters p. 4999 - 5002 (1990)

Update date:2022-08-05

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Authors:

Block Block

Zhao Zhao

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Article abstract of DOI:10.1016/S0040-4039(00)97788-8

Heating the onion oil component bis (1-propenyl) disulfide gives cis- and trans-2-mercapto-3,4-dimethyl-2,3-dihydrothiophene which can lose H₂S upon further heating giving 3,4-dimethylthiophene. A dithio-Claisen rearrangement is proposed for the key step.

Full text of DOI:10.1016/S0040-4039(00)97788-8

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