26 BIBLIOGRAPHY OF 



JOURDAN, FRIEDRICH, 1879. 



Ann. Chem. 200, 101-119; J. Chem. Soc. 38, 313; Jsb. Cliem. 1879, 668. 



Mono= and Di=heptyl=acetoacetic Esters. 



Acetoacetic ester treated with heptyl iodid, C7 H15 i, and sodium 

 ethoxid forms heptyl-acetoacetic ester, CH3 CO CH Cy H15 CO2 C, H5, 

 a colorless oil which boils at 271° to 273° and has a specific gravity of 

 .9324 at 17.1.° This was saponified and heptyl acetone, CH3 CO CH, 

 Cy H15, boiling at 2i4°-2i5°, with a specific gravity of .829 at 17.7°, 

 and heptyl-acetic acid, identical with nonyl acid, were produced. Di- 

 heptyl-acetoacetic ester was made in the similar way, and from this 

 methyl diheptyl carbin ketone (diheptyl acetone), CH3 CO CH (C7 

 Hi5)2, and diheptyl acetic acid, CH (C7 Hi5)2 CO2 H, were produced. 



VENABLE, F. P., 1880. 



Ber. 13, 1649-1652 ; Jsb. Chem. 1880, 438. 



Derivatives of Heptanes. 



Heptyl-acetoacetic ester was produced by the Conrad and Limpach 

 method, it boils at 250° to 260.° When saponified it yielded methyl 

 octyl ketone, CH3 CO CH^ CH CH3 



C5 Hi I, which boils at 196° to 198° 

 This formula was assigned to it because the heptyl bromide, C5 Hu CH 

 Br CH3, was used to start with. 



MORRIS, GEO. H., 1880. 



J. Chem. Soc. 37, 6-14 ; Ber. 13, 427 ; Jsb. Chem. 1880, 813. 



a-Methyl=hydroxy=succinic Acid. 



Acetoacetic ester treated with hydrocyanic acid and then with h5'dro- 

 chloric acid gives, CH3 C (OH) CH^ CO^ H, 



CO2 H a crystalline substance, soluble in water, 

 alcohol and ether which melts at 108° It is the same acid as Demarc- 

 ay's oxy-pyrotartaric described in Compt. rend. 82, 1337. The barium, 

 calcium, potassium, silver, lead and copper salts were described. The 

 three isomeric acids of this formula were shortly discussed. 



