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Synthesis 1989; 1989(5): 398
DOI: 10.1055/s-1989-27265
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One-Step Synthesis of 5-Mercaptopyrazoles from 2-Methylene-1,3-dithietanes

Nobuyuki Okajima* , Yoshiyuki Okada
  • *Plant Protection Research Laboratories, Agro Division, Takeda Chemical Industries, Ltd., Yodogawa-ku, Osaka 532, Japan
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Publication Date:
17 September 2002 (online)

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2-Methylene-1,3-dithietanes bearing electron-withdrawing groups on the sp2 carbon afford 5-mercaptopyrazole derivatives by the reaction with methylhydrazine.

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