PCH3C6h R (petr ether) C, H, N; Sg 102-104 8 a" R" refers to reaystn (solvent in parentheses);'\''T" refers to trituration (solvent in parentheses). bAnalyses were performed by Galbraith Laboratories and A. Bernhardt, Microanalytisches Laboratorium, West Germany, and were within 0.4% of the calcd values, unless noted otherwise. cC: calcd, 18.79; found, 19.86. dH: calcd, 5.34; found, 4.74. eS: calcd, 27.61; found, 26.60. fC: calcd, 38.51; found, ...