[1] Locquin R.: Bull. Soc. Chim. France 35, 964 (1906)

[2] Rossi S.: Gazz. chim. ital. 83, 133 (1953)

[3] Seibert. W.: Chem. Ber. 80, 494 (1947) Zbl 1153.11318

[4] Popovici M. L.: Ann. chim. 18, 183 (1932)

[5] Popovici M. L.: Compt. rend. 191, 210 (1930)

[6] Cattelain E.: Bull. Soc. Chim. France 9, 907 (1942)

[7] Zakutskaya M. A.: J. Gen. Chem. 10, 1553 (1940); C. A. 35, 3230 (1941)

[8] Adickes F.: Chem. Ber. 58, 211 (1925)

[9] Fodor G.: Acta Lit. Sci. Regiae Univ. Hung., Sect. Chem., Mineral., Phys. 6, 1 (1937); C. A. 32, 2125 (1938)

[10] Girard M.: Compt. rend. 206, 1303 (1938)

[11] Girard M.: Ann. chim. 16, 326 (1941)

[12] Cattelain E.: Compt. rend. 207, 998 (1938)

[13] Bougault J.: J. pharm. chim. 11, 5 (1915)

[14] Bougault J.: Compt. rend. 159, 631 (1914)

[15] Bougault J.: Compt. rend. 159, 83 (1914)

[16] Bougault J., Daniel L.: Compt. rend. 186, 1216 (1928)

[17] Godfrin A.: J. pharm. chim. 30, 321 (1939)

[18] Chang P. K.: J. Org. Chem. 23, 1951 (1958) Zbl 0045.44103

[19] Ger. 1, 137, 739; C. A. 58, 9105 (1963) Zbl 1145.93303

[20] Bougault J., Daniel L.: Compt. rend. 186, 151 (1928)

[21] Cattelain E.: Compt. rend. 212, 551 (1941)

[22] Falco E.A., Pappas E., Hitchings. G.H.: J. Am. Chem. Soc. 78, 1938 (1956)

[23] Barlow R. B., Welch A. D.: J. Am. Chem. Soc. 78, 1258 (1956)

[24] Cattelain E.: Compt. rend. 214, 429 (1942)

[25] Cattelain E., Chabrier P.: Compt. rend. 224, 1571 (1947)

[26] Cattlain E., Chabrier P.: Bull. Soc. Chim. France I947, 1098

[27] Gut J.: Chem. listy 51, 1947 (1957) Zbl 0029.01501

[28] Geigy J. R.: Swiss 288, 888. C. A. 49, 2528 (1955)

[29] Geigy J. R.: Swiss 288, 889. C. A. 49, 2528 (1955)

[30] Geigy J. R.: Swiss 298, 016. C. A. 49, 2528 (1955)

[31] Geigy J. R.: Swiss 293, 017. C. A. 49, 2528 (1955)

[32] Geigy J. R.: Brit. 705, 609. C. A. 49, 5535 (1955)

[33] Brit. 759, 014. C. A. 51, 9719 (1957)

[34] Hagenbach R. E., Hodel E., Gysin H.: Angew. Chem. 66, 359 (1954)

[35] Hagenbach R. E., Hodel E., Gysin H.: Experientia 10, 62 (1954)

[36] Hagenbach R. E., Hodel E., Gysin H.: Experientia 11, 314 (1955)

[37] Morávek J.: Chem. & Ind. 1957, 1387; Coll. Czech. Chem. Commun. 24, 2571 (1959)

[38] Nakata I., Ueda T.: Yakugaku Zasshi 80, 1068 (1960); C. A. 55, 562 (1961); Japan 16, 628, 61, C. A. 57, 3460 (1962)

[39] La Parola G., Turi C. J.: Ann. chim. (Róme) 51, 283 (1961)

[40] La Parola G., Jacobelli C.: Turi. Rend. Ist. Super. Sanita 23, 1058 (1960); C. A. 56, 3482 (1962)

[41] Rossi P. F., Sorassi S.: Ann. Chim. (Rome) 51, 64 (1961)

[42] Libermann D., Jacquier R.: Bull. Soc. Chim. France 1961, 383

[43] Rossi P. F., Berolati G.: Gazz. chim. ital. 93, 265 (1963)

[44] Cattelain E.: Bull. Soc. Chim. France 11, 249 (1944)

[45] Cattelain E.: Compt. rend. 210, 301 (1940)

[46] Gut J. a spol.: Coll. Czech. Chem. Commun. 26, 974 (1961)

[47] Zee-Cheng K. Y., Cheng C. C.: J. Org. Chem. 27, 976 (1961)

[48] Cattelain E.: Bull. Soc. Chim. France 11, 256 (1944)

[49] Cattelain E.: Bull. Soc. Chim. France 11, 273 (1944)

[50] Cattelain E.: Compt. rend. 210, 763 (1940)

[51] Bodforss S.: Ann. 634, 125 (1961)

[52] Tišler M., Vrbaški Z.: J. Org. Chem. 25, 730 (1960)

[53] Cattelain E.: Bull. Soc. Chim. France 12, 39 (1945)

[54] Elvidge J. A., Spring F. S.: J. Chem. Soc. 1949, 135

[55] Cattelain E.: Compt. rend. 213, 308 (1941)

[56] Hadáček J., Slouka J.: Pharmazie 13, 402 (1958)

[57] Hadáček J., Slouka J.: Pharmazie 14, 19 (1959)

[58] Hadáček J., Slouka J.: Publ. Fac. Sci. Univ. Brno 403, 253 (1959)

[59] Slouka J.: Pharmazie 15, 317 (1960)

[60] Slouka J.: J. prakt. Chem. [4] 16, 220 (1962)

[61] Slouka J., Nalepa K.: J. prakt. Chem. [4] 18, 188 (1962)

[62] Slouka J., Nalepa K.: Acta Univ. Palackianae Olomucensis Fac. Rerum Naturalium 12, 145 (1963)

[63] Slouka J., Nalepa K.: Pharmazie 19, 696 (1964)

[64] Tingle J. B., Bates S. J.: J. Am. Chem. Soc. 32, 1499 (1910)

[65] Holland A.: J. Chem. Soc. 1962, 3260 Zbl 0225.68044

[66] Chang P. K., Ulbricht T. L. V.: J. Am. Chem. Soc. 80, 976 (1958)

[67] Kröhnke F., Leister H.: Chem. Ber. 91, 1479 (1958)

[68] Eisenbraun A. A., Purves C. B.: Canad. J. Chem. 38, 622 (1960)

[69] Gränacher C. a spol.: Helv. Chim. Acta 6, 458 (1923)

[70] Brown F. C. a spol.: J. Am. Chem. Soc. 73, 2357 (1951) Zbl 0054.05102

[71] Julian P. L., Sturgis B. M.: J. Am. Chem. Soc. 57, 1126 (1935)

[72] Libermann D., Himbert J., Hengl L.: Bull. Soc. Chim. France 15, 1120 (1948)

[73] Gut J., Prystaš M.: Coll. Czech. Chem. Commun. 24, 2986 (1959)