合成了新配合物PdCl2[(PPh2)CHCl],用核磁,红外光谱,元素分析等表征了其结构,X-rax衍射确定了单晶结构.应用电子顺磁共振-自旋捕获(EPR-ST)对技术研究了其反应的机理.捕获到PPh2及含碳自由基中间体,提出了反应机理. 关键词: EPR-ST;Pd配合物;自由基机理 DOI: 10.1007/BF02947210 被引量: 4 年份: 199...
Indene 1,1-indenedicarboxylate by PdCl2(PPh3)2 CuI-mediated alkyne carboannulation fr (o-iodophenyl)malonate (o-iodophenyl)cyanoacetateZhang, DLiu, ZYum, E KLarock, R C
The catalytic activities of PdCl 2(PPh 3) 2 and of NiCl 2(PPh 3) 2 in cross coupling of some chloro- and bromoarenes with intramolecularly stabilized aluminum complexes [R 2AlOCH 2CH 2NMe 2] 2 (R = Ph, PhC≡C, PhCH 2, Et and I-Bu) are compared. The palladium catalyst promotes...
Suzuki 偶联反应发展初期多使用 Pd(PPh ) 催 化反应I 。随着研究的深入 ,多种类的单齿烷基膦 配体、双 ( 多 ) 齿膦配体和Ⅳ.杂环卡宾配体等配 体_8 ,环( 钳)钯类 化合物、负载型 和复合 型前 驱 体_1 等不断被报道 出来 。近年来 ,随着绿色环保 和原子经济性概念 日益得 到重视 ,高...
The metallacrown ether cis-[PdCl 2 {Ph 2 P(CH 2 CH 2 O) 3 CH 2 -CH 2 PPh 2 -P,P'}] (cis-1) has been kinetically trapped via precipitation during the reaction of PdCl 2 and Ph 2 P(CH 2 CH 2 O) 3 -CH 2 CH 2 PPh 2 in an acetonitrile/THF mixture. The kinetics ...
The reaction of the unsymmetric bisphosphanyl urea ligand P(OC6H3But2-2,4)2N(Me)C(O)N(Me)PPh2 with [Pd(cod)Cl2] (cod = 1,5-cyclooctadiene) results in the chiral palladacycle (R,S)A2-[Pd(κ2-P,P-{P(OC6H3But2-2,4)2N(Me)C(O)N(Me)PPh2}Cl2]. The chirality of ...
Treatment of the phosphino-N-benzoyl hydrazones PPh2CH2C(R)NNHC(O)Ph (R = But, I; R = Ph, II) with [MCl2(NCPh)2] (M = Pd or Pt) gave complexes of type [MCl{PPh2CH2C(But)NNC(Ph)O}] (M = Pd, 1; M = Pt, 2) containing two fused five-membered... M Ahmad,SD P...