| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for synthesizing various isomers of a polychlorodibenzothiophene to easily obtain the objective compound in high yield and purity. SOLUTION: A polychlorodibenzothiophene is produced in high efficiency by condensing a chlorobenzenethiol with a chloronitrobenzene, reducing the obtained nitropolychlorodiphenyl sulfide to obtain an aminopolychlorodiphenyl sulfide as an intermediate, diazotizing the amino group of the intermediate and reacting the obtained diazopolychlorodiphenyl sulfide at≥60°C to effect the intramolecular cyclization. COPYRIGHT: (C)2004,JPO
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