PURPOSE: To obtain the subject compd. useful as an intermediate for synthesizing herbicides in a high yield with a high purity by bringing easily available halobenzene into reaction with sodium hydrogen sulfide, etc., in the presence of a diluent, then adding an acid to the reaction product.
CONSTITUTION: The compd. formula II is obtd. by bringing the halobenzene of formula I (R1 to R4 are H, halogen, nitro, alkyl, etc.; R5 is alkyl, alkoxyalkyl, etc.; X is carbonyl, sulfinyl, etc.; Hal is halogen) into reaction with the sodium hydrogen sulfide or sodium sulfide in the presence of the diluent (e.g.: N- methylpyrrolidone, DMF, etc.). The acid (e.g.; Hcl, dilute sulfuric acid, etc.) is then added thereto to obtain the thiophenol of formula III.
KURAUSU SATSUSE
RAINAA FUITSUSHIYAA