... Soc. 70, 1529 (1948).CrossRef. 31. General Electric, US Pat. 2,308,495 (1943). 32. ... R2, 58234n (1975). 58. IG Farben, US Pat. 2,047,398 (1936). 59. IP Losev and EB Trostyanskoya, J. Gen. Chem. (USSR) 17, 122 (1947); 59a. IP Losev and EB Trostyanskoya,Chem. Abstr. ...