CC BY-ND-NC 4.0 · SynOpen 2018; 02(01): 0064-0071
DOI: 10.1055/s-0036-1591771
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Synthesis of 3-(Arylthio)propionic Acids from Nonactivated Aryl Iodides and their Use as Odorless Aryl Mercaptan Surrogates

B. Menczinger
,
A. Nemes
,
A. Csámpai
,
J. Rábai  *
National Research Development and Innovation Office (NN 117633).
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Publication History

Received: 14 November 2017

Accepted after revision: 10 February 2018

Publication Date:
14 March 2018 (online)


Abstract

The reaction of aryl iodides, 3-mercaptopropionic acid, and Cu2O in refluxing pyridine resulted in the formation of 3-(arylthio)propionic acids in good to excellent yield. The latter 3-(arylthio)propionic acids — as novel aryl mercaptan equivalents — gave aryl mercaptans or diaryl disulfides, respectively, on reductive (Na2S) or oxidative (I2) cleavage in alkaline media. The symmetrical disulfides can also be prepared by oxidizing their precursor mercaptans with phenyltrimethyl­ammonium­tribromide in pyridine at ambient temperature.

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