- 作者: 廖文瑞 ; 王彥儒 ; 陳志德 等
- 作者服務機構: 台灣大學化學系
- 中文摘要:
Carbamoyl complexes, (CO)/sub 4/Re(NH/sub 2/R)(CONHR)(R=ethyl, 1; R=allyl, 2; R=isopropyl, 3) were prepared by reactions of(CO)/sub 5/ReBr (or (CO)/sub 5/ReCH/sub 2/SiMe/sub 3/) with appropriate amines. Complexes 1, 2 and 3 reacted with CH/sub 3/CH/ sub 2/COCl to give Re(CO)/sub 5/(NH/sub 2/R)/sup +/Cl/sup -/ (R=ethyl, 4; R=allyl, 5; R=isopropyl, 6). Complex 5 undergoes nucleophilic attack by KOMe to give the alkoxycarbonyl complexes(CO)/sub 4/Re(NH/sub 2/-Allyl)(COOMe), 7. Complexes 4, 5, 6 and 7 were transformed to the corresponding carbamoyl complexes by reacting with appropriate amines. The reactions between the carbamoyl complexes and R"OH/CHCl/sub 3/ in air at room temperature gave the proposed products((CO)/sub 4/Re(NH/sub 2/R))/sub 2/O (R=allyl, 8; R=isopropyl, 9), respectively. Complex 8 can also be prepared by heating 7 in CDCl/sub 3/ at 63-68.degree.C for several days.
The structure of 1 was confirmed by a X-ray crystallographic study. Crystallographic data: space group P2/sub 1//c, a=8.193(3).ANG., b=19.273(3).ANG., c=9.348(8).ANG., .beta.=110.37(4).degree., V=1383.68.ANG./sup 3/, Z=4; R(F)=0.027, R/sub w/(F)=0.030, based on 1888 reflections with I>2.5.sigma.(I). The other complexes were characterized by /sup 1/H NMR, /sup 13/C NMR, IR and mass spectra. - 英文摘要: --
- 中文關鍵字: Carbamoyl Complex; Interconversion; Organic Synthesis; Amines; Mass Spectrum
- 英文關鍵字: 胺甲醯基錯合物;相互轉變;有機合成;胺類;質譜