of triphenylphloroglucinol;[8] the action of ammonium sulfide
upon acetophenone;[9] the heating of phenylmalonic acid;[10]
the hydrolysis of phenylacetoacetic ester;[11] the action of hydriodic
acid upon mandelonitrile.[12]


[1a] Ann. 96, 247 (1855); Ber. 14, 1645 (1881); Compt.
rend. 151, 236 (1910).

[2a] Ber. 19, 1950 (1886).

[3a] Ber. 44, 537 (1911).

[1] Ann. 370, 371 (1909)a

[2] Chem. (2) 1, 443 (1865); Ber. 14, 239 (1881).

[3] Ber. 10, 847 (1877)

[4] J. prakt. Chem. (2) 82, 52, 58 (1910).

[5] Ann. 148, 242 (1868).

[6] Ann. 308, 318 (1899).

[7] J. Russ. Phys. Chem. Soc. 42, 1387 (1910); Chem. Zentr.
1911 (I) 1279.

[8] Ann. 378, 263 (1911).