Abstract
Manufacture of thiophene by the Philipps method and its modified Hachihame method was examined. It was found that by the addition of sand for dry distillation of sodium succinate and phosphorus trisulfide, the yield of thiophene was increased and made industriallization possible. On the other hand, the Krause method for the manufacture of 2-bromothiophene was examined and the increse in the yield to 76% was found possible by the addition of ether as a solvent.
