Aryl palladium complexes [PdC6H4(CH2)2C(O)NRR′)-2}I(tmeda)] [NRR′ = NH2 (1a), NHMe (1b), NMe2 (1c); tmeda = N,N,N′,N′-tetramethylethylenediamine] are prepared by oxidative addition of the corresponding 3-(2-iodophenyl)propanamides to “Pd(dba)2” ([Pd2(dba)3]·dba; dba = dibenzylideneacetone) in the presence of tmeda. The cationic seven-membered palladacycles [Pdκ2C,O-C6H4(CH2)2C(O)NRR′)-2}(tmeda)]TfO
芳基
钯络合物[Pd C 6 H 4(CH 2)2 C(O)NRR')-2} I(TMe
DA)] [NRR'= NH 2(1a),NHMe(1b),NMe 2(1c) ; 通过将相应的3-(2-
碘苯基)丙酰胺氧化加成到“ Pd(dba)2 ”([Pd 2(dba)3 ]·dba中,制备TMe
DA =N,N,N ′,N′-
四甲基乙二胺)。在TMe
DA存在下dba =
二亚苄基丙酮)。阳离子7元
钯环[
钯κ 2 Ç,Ò-C 6 H 4(CH 2)2 C(O)NRR')-2}(TMe
DA)] TfO(2a – c)是通过1a – c与AgTfO反应获得的。类型[
钯κ的中性配合物酰胺化物2 Ç,Ñ -C 6 ħ 4(CH 2)2 C(O)NR)-2}(TME
DA)] [R = H(图3a)中,Me(图3b)]通过用KO t Bu使1a或1b中的酰胺官能团去质子化而获得。1a的反应在室温下用CO生成稳定的酰基衍
生物[Pd