201213-29-8Relevant articles and documents
Bicyclic cyclopalladated complexes derived from N-benzyl-substituted Schiff's bases
Hiraki, Katsuma,Ibaraki, Shingo,Onishi, Masayoshi,Ono, Yuka,Kawashima, Junko K.,Ando, Masako
, p. 199 - 207 (2008/10/08)
2-Benzylamino-2-penten-4-one (Hacac-bn) reacts with Pd(MeCO2)2 and [Pd(MeCO2)2(SPri2)2] in benzene at 50°C to give an N,O-chelated complex, [Pd(acac-bn)2] and a bicyclic cyclopalladated complex, [Pd(acac-NCH2C6H4)(SPri2)], respectively. Diisopropyl sulfide ligand in the latter complex is replaced easily by PPh3, giving [Pd(acac-NCH2C6H4)(PPh3)]. N-(Salicylidene)benzylamine (Hsal-bn) also reacts similarly with Pd(MeCO2)2 and [Pd(MeCO2)2(SPri2)2] at 50°C to afford [Pd(sal-bn)2] and [Pd(sal-NCH2C6H4)(SPri2)], respectively. N-(3,5-Dichlorosalicylidene)benzylamine (Hdcsal-bn) reacts with [Pd(MeCO2)2(SPri2)2] and Pd(MeCO2)2 in the presence of PPh2(OMe) at 50°C to yield cyclopalladated complexes, [Pd(dcsal-NCH2C6H4)(SPri2)] and [Pd(dcsal-NCH2C6H4){PPh2(OMe)}], respectively. [Pd(MeCO2)2(dmpy)2] (dmpy = 3,5-dimethylpyridine) reacted with Hdcsal-bn in 1:1 and 1:2 molar ratios at 50°C to give [Pd(dcsal-bn)(MeCO2)(dmpy)] and [Pd(dcsal-bn)2], respectively. The functions of SPri2 and dmpy in these reactions are discussed.