July 17, 1914] 



SCIENCE 



113 



ture of all three isomers, based upon the reactions 

 of their respective dibromides, is offered. 



TJie Rearrangement of Trioxylmethyl Asids: 



James K. Senior. 



The rearrangement of triphenylmethyl azid 

 (C6H[i)s — C — ISTj by the action of heat into phenyl- 

 imidobeerzopherone was made extremely likely by 

 the discovery of this rearrangement in the case of 

 triphenylmethyl hydrosylamine under the influ- 

 ence of dehydrating agents, and of triphenylmethyl 

 halogen amines under the influence of alkalies. 

 Experiment proved the correctness of the antici- 

 pation. 



The Action of Trioxymethylene on the Various 

 Sydrocarions in the Presence of Aluminium 

 Chloride: Geo. B. Frankportek and V. R. 



KOKATNUE. 



This work was begun with the idea of extend- 

 ing the use of anhydrous aluminium chloride as a 

 dehydrating reagent, at the same time throwing 

 light, if possible, on the constitution of trioxy- 

 methylene. So far, little knowledge has been 

 added to the molecular structure of the latter. 

 However, the use of aluminium chloride as a de- 

 hydrating agent has been extended. It has been 

 shown, by treating benzene and trioxymethylene 

 with aluminium chloride, that diphenylm ethane 

 and anthracene were obtained; with toluene, di- 

 toluylmethane and dimethylanthracene ; with xylene, 

 dixylylmethane and tetramethylanthracene, and 

 finally with mesitylene, dimesitylmethane, tetra- 

 methylanthracene and durene. 



Studies on Organic Periodides. I. Periodides of 

 Methacetin, Phenacetin and Triphenin: W. O. 

 Emery. 



Periodides of Antipyrin: W. O. Emery and S. 

 Palkin. 



Molecular Bearrangements of Eydrasines: Julius 



Stieglitz and James K. Senior. 



Rearrangements of hydrazines corresponding to 

 the rearrangement of oximes (Beckmann) and 

 of hydroxanic acids are not described in the liter- 

 ature. Attempts are made by the authors on a 

 number of hydrazones and hydrazines on account 

 of the fundamental analogy between hydroxyl- 

 amine derivatives and those of hydrazine, but 

 until recently the attempts were unsuccessful. A 

 source of the failure was thought to lie in the ex- 

 istence of two possible electronic structures for 

 hydrazines and hydrazones. To avoid this pos- 

 sible difliculty the rearrangement of symmetric 

 di-triphenylmethylhydrazine 



(C,H5)3C.M/-.M2C(C„H,)s 

 was tried and was found to proceed successfully 

 under the influence of zinc chloride. The results 

 promise to throw light on these rearrangements and 

 on the electronic structures of the compounds in- 

 volved. 



The Phosphates of Vestearin: R. R. Renshaw 

 AND R. R. Stevens. 



Electromers and Stereomers with Positive and 

 Negative Hydroxyl: L. W. Jones and L. F. 

 Werner. 



Halogen Suistituted Eydroxamic Acids: L. W. 

 Jones and L. E. Werner. 



Formyl-jS-hensylhydroxylamine: L. W. Jones and 

 M. C. Sneed. 



The Addition Compounds of Vimethylpyrone with 



Organic Acids: James Kendall. 



The addition compounds of monobasic aliphatic 

 and aromatic acids, and also of phenols, with di- 

 methylpyrone have been investigated by the freez- 

 ing-point method. Thirty-two substances were 

 examined, and the existence of thirty-seven com- 

 pounds, most of which have not previously been 

 described, has been demonstrated. The com- 

 pounds obtained were of three general types: 

 CHsO,, Hx; 20,HaO,, 3Hx; and C,HsO,, 2Hx. 

 A consideration of the results leads to the view 

 that the reaction is ionic, and that the compounds 

 formed are true oxonium salts. The method is of 

 general application for the study of organic addi- 

 tion reactions. 



Errors in the Dumns Method for determining Ni- 

 trogen Due to Occluded Gases in Copper Oxide: 

 C. A. Taylor and A. C. Eieldner. 



The Isomeric Octacetates of Lactose: C. S. Hud- 

 son and James M. Johnson. 

 The octacetate of lactose already known was 

 purified until a m. p. of 90° (uneorr.) and a 

 specific rotation in chloroform of (L)™ = — 4.3° 

 were obtained. By means of zinc chloride in acetic 

 acid at room temperature, this compound was re- 

 arranged into a new isomeric octacetate which was 

 obtained crystalline with a m. p. of 152° C. 

 (uneorr.) and a specific rotation in chloroform of 

 (Z/)^= + 53.1°. Lactose was regenerated from 

 both isomers. 



Substitution in the Benzene Nucleus and in the 

 Side Chain from the Standpoint of the Elec- 

 tronic Conception of Positive and Negative 

 Valences: H. S. Ery. 



