31. The boroxine ring of one molecule is stacked between two phenyl rings of other molecules. 32. One coordination site is occupied by one of the hydrogen atoms of a phenyl group. 33. The bond lengths between carbon atoms in a phenyl group are approximately 1.4 ? 34. The new process begins by enantiopure trifluoromethylated phenyl ethanol being joined to a racemic morpholine precursor. 35. PPh 3 is pyramidal with a chiral propeller-like arrangement of the three phenyl rings. 36. Its effectiveness is partially attributable to its rigidity, reflecting the presence of six phenyl rings. 37. Its 5-ethyl-5-phenyl substitution pattern is similar to that of phenobarbital. 38. Phenyl triflimide is a triflating reagent.39. It has been studied as a biological producer of toluene from phenylalanine and other phenyl precursors. 40. An artificial isothiocyanate, phenyl isothiocyanate, is used for amino acid sequencing in the Edman degradation.
