chemical yield of 46–70%. Complex 15 decomposed in [D6]DMSO to yield the protic palladacycle 18, [H(NˆCˆN)PdBr], C24H21N4PdBr, which was confirmed by the time-dependent 1H NMR studies, IR spectroscopy, mass spectrometry and the structure was corroborated with X-ray crystallographic studies. Complexes 14–18 are the fully characterized examples of NCN palladium(II) pincer complexes incorporating the N-s
一类新的微溶NCN
钯(II)钳类型的络合物(N Ç N)PDBR:[甲基(N Ç N)PDBR],C 26 H ^ 25 Ñ 4 PDBR(14),[
甲苯磺酰基(N ç N)PDBR],C 38 H ^ 33 ñ 4 ø 4小号2 PDBR(15),[苄基(N ç N)PDBR],C 38 H ^ 33 ñ 4PDBR(16)和[戊(N Ç N)PDBR],C 34 H ^ 41 Ñ 4 PDBR(17 )[(N C ^ N)= 5-叔丁基- 1,3-双- (Ñ -取代的
苯并咪唑-2'-基)苯基]是通过用5-叔丁基-1,3-双-(N-取代的
苯并咪唑- )对
钯(0)前体Pd 2(dba)3进行处理而合成的。2'-yl)-2-
溴苯(10-13)通过氧化加成,
化学收率为46-70%。[D中分解的复合物15 6 ]
DMSO,得到质子
钯环18,[ ħ (N Ç N)PDBR],C 24 H ^ 21