An Improved and Practical Method for Synthesizing of α-Sanshools and Spilanthol.

ABSTRACT: An efficient and practical route for the synthesis of α-sanshools and spilanthol is described herein. Several modifications of an existing method enabled the preparation of the (2E,6Z,8E,10E)-tetraene precursor of hydroxy-α-sanshool in good yield. A highly selective Wittig reaction employing newly synthesized phosphonium salt with low deliquescence and long-term stability yielded the desired Z-form tetraene. This improved methodology was shown to be applicable to the efficient synthesis of α-sanshool and spilanthol.

SUBMITTER: Nakamura A 

PROVIDER: S-EPMC7090093 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature