Reactions of triaryl selenonium salts and diaryl selenoxides with phenyllithium: First detection of tetraaryl, selenuranes [10-SE-4(C4)] by 77SE, 1H, and 13C NMR
摘要:
First evidence for the formation of tetraaryl selenuranes was presented in the reaction of triphenyl selenonium salt or 2,2'-biphenylylene phenyl selenonium salt with phenyllithium by Se-77, H-1, C-13 and CH-COSY NMR studies at low temperature. These selenuranes were also formed in the reactions of the corresponding selenoxides with two equivalents of phenyllithium.