Atavin,A.S. et al., Journal of Organic Chemistry USSR (English Translation), 1968, vol. 4, p. 1500 - 1503
作者:Atavin,A.S. et al.
DOI:——
日期:——
Shostakovskii,M.F. et al., Journal of general chemistry of the USSR, 1970, vol. 40, p. 65 - 71
作者:Shostakovskii,M.F. et al.
DOI:——
日期:——
Coordinated carbenes from electron-rich olefins on RuHCl(PPr3i)2
作者:Joseph N. Coalter III、John C. Bollinger、John C. Huffman、Ulrike Werner–Zwanziger、Kenneth G. Caulton、Ernest R. Davidson、He´lène Ge´rard、Eric Clot、Odile Eisenstein
DOI:10.1039/a907624g
日期:——
model. Less electron-rich vinyl amides or amines form η2-olefin complexes, but do not isomerize to carbenecomplexes. Calculated ΔE values for selected ‘‘ competition’’ reactions reveal that donation by both Ru and the heteroatom-substituted X are necessary to make the carbenecomplex L2HClRuC(X)(CH3) more stable than the olefincomplex L2HClRu(η2-H2CCHX). This originates in part from a diminished
RuH 2 Cl 2 L 2 (L = PPr 3 i)的脱卤化氢得到(RuHClL 2)2,通过X射线晶体学显示为卤化物桥连的二聚体。氟化物类似物也是二聚体。(RuHClL 2)2与N 2,吡啶和C 2 H 4(L')反应生成RuHClL'L 2,但与乙烯基醚和乙烯基酰胺H 2 C CH(E)[E = OR,NRC(O )R'],这样的烯烃键合后异构化为杂原子取代的卡宾配合物L 2 HClRu C(CH 3)(E)。通过DFT(B3PW91)计算,对于作为烯烃的C 2 H 4(发现有吸热性),通过DFT(B3PW91)计算确定了这种重排的反应机理,并针对H 2 C C(H)(OCH 3)计算了中间体的结构)和环状和非环状酰胺取代的烯烃。从实验和计算上都发现,酰胺氧结合到Ru上,对于非环状模型,计算出的结合能约为9 kcal mol -1。少富电子乙烯基酰胺或胺形成η 2个烯烃配合物,但不
Ultrafast Photoclick Reaction for Selective <sup>18</sup>F-Positron Emission Tomography Tracer Synthesis in Flow
作者:Youxin Fu、Hugo Helbert、Nadja A. Simeth、Stefano Crespi、Gerbren B. Spoelstra、Jan Maarten van Dijl、Marleen van Oosten、Luiza Reali Nazario、Dion van der Born、Gert Luurtsema、Wiktor Szymanski、Philip H. Elsinga、Ben L. Feringa