Facile syntheses of the metallacyclic rings Pt–C–P–C, Pt–N–P–N and Pt–N–S–N; crystal structures of [Pt{CH(COPh)P(O)(Ph)CH(COPh)}(PPh<sub>3</sub>)<sub>2</sub>] and [Pt{C(CO<sub>2</sub>Me)C(CO<sub>2</sub>Me)NHS(O)<sub>2</sub>NH}(PMePh<sub>2</sub>)<sub>2</sub>]
作者:Raymond D. W. Kemmitt、Simon Mason、Mark R. Moore、John Fawcett、David R. Russell
DOI:10.1039/c39900001535
日期:——
Reaction of PhCOCH2P(O)(Ph)CH2COPh, RNHP(O)(Ph)NHR or RNHS(O)2NHR (R = H or Ph) with cis-[PtCl2L2](L = PPh3 or PMePh2; L2= Ph2PCH2CH2PPh2 or cycloocta-1,5-diene) in the presence of silver(I) oxide gives metallacyclic complexes of the type [[graphic omitted]H(COPh)}L2], [[graphic omitted]R} L2] or [[graphic omitted]R}L2] respectively; single crystal X-ray studies on [[graphic omitted]H(COPh)}(PPh3)2] and the insertion product [[graphic omitted]H}(PMePh2)2] establish the presence of puckered metallacycles, the oxygen of the platinaphosphetane-3-oxide adopting an equatorial environment.
在银(I)氧化物的存在下,PhCOCH2P(O)(Ph)CH2COPh、RNHP(O)(Ph)NHR或RNHS(O)2NHR(R=H或Ph)与cis-[PtCl2L2](L=PPh3或PMePh2;L2=Ph2PCH2CH2PPh2或cycloocta-1,5-diene)反应分别得到金属环状配合物[[graphic omitted]H(COPh)}L2]、[[graphic omitted]R}L2]或[[graphic omitted]R}L2];单晶X射线研究[[graphic omitted]H(COPh)}(PPh3)2]和插入产物[[graphic omitted]H}(PMePh2)2]确定了呈现出皱褶的金属环状结构,钯磷杂环氧化物中的氧采用赤道环境。