| 摘要 |
<p>There is disclosed a process for preparing 5-mercapto-1,2,3-thiadiazole salts comprising reacting a hydrazone compound represented by the formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="7" wi="43" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein X represents a halogen atom and Ar represents an aryl group, with a polysulfide compound represented by the formula:
<Chemistry id="chema02" num="0002"><Image id="ia02" he="7" wi="27" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein M represents an alkali metal atom or an NH<Sub>4</Sub> group and x is an integer of 2 to 6.</p><p>The present invention provides the 5-mercapto-1,2,3-thiadiazole salt with remarkably increased yield as compared with the conventional method.</p> |
