Ueber Stilben, Thionessal und Tolallylsulfür

Abstract

1)Baumann und F r o m m , diese Berichte XXIV, 1435. a) Ann. Chem. Pharm. 58. 320. Die von L a u r e n t bei dieser Zersetzung angenommene Bildung van Schwefelkohlenstoff findet, wie F lei sc h e r (Ann. Chem. Pharm. 144, 192) zeigte, in Wirklichkeit nicht statt.

Thiones and Thials.

“…Those heterocyclic thiones which are not converted to ethylene derivatives by heat are resistant to .the reaction with copper (176). Schonberg (171) synthesized dixanthylene by heating xanthione with copper bronze, but when thioacridone was heated with copper powder, Lehmstedt and Hundertmark (118) obtained a mixture of reduction products containing 25 per cent of acridine and 59 per cent of 9,9'diacridyl (V). Interest in stilbenes as synthetic sex hormones led Cline, Campaigne, and Spies (49) to investigate the conversion of thioacetophenone to a , '-dimethylstilbene (VI).…”

THE MECHANISM OF THE REACTIONS OF HYDROCARBONS WITH SULFUR1

“…However, although the reactions of his compound were certainly characteristic of a thiophene derivative, the physical properties differed greatly from those reported for either 2or 3-phenylthiophene (7,8). Now, in reviewing the early literature on sulfur heterocyclics, the writer has noted a striking agreement between the melting and boiling points of Renard's "phenylthiophene" and those reported for the so-called "tolallyl sulfide", CyHioS (9,10). This crystalline material had been previously synthesized by the pyrolysis of benzyl sulfide and disulfide.…”

“…only VI (6,10) It is to be noted especially that the thianaphthene derivative, I, was formed only in the reactions of those starting materials which contained the CeH6CH2 grouping. Reaction (f) of benzyl alcohol is not necessarily an exception to this rule since its conversion by sulfur probably proceeds by the following steps: C6H6CH2OH + S -* C6H6CHO + H2S CeHsCHO + H2S -»• CeH6CHS + H20…”