Accessing Monosubstituted Cyclopentadienyl Rhodium(I) and Iridium(I) Complexes by a Simultaneous Nucleophilic Addition-Metalation Approach to Fulvenes
作者:Aragorn Laverny、Nicolai Cramer
DOI:10.1021/acs.organomet.0c00550
日期:2020.12.28
Despite advances in the synthesis of polysubstituted cyclopentadienyl metal complexes, the rapid access to a library of monosubstituted Cp bearing metal complexes remains challenging. A convenient and general method to access a broad range of monosubstituted cyclopentadienyl rhodium(I) and iridium(I) complexes is reported. The process involves a direct nucleo-metalation of fulvenes with widely available
A short route to cyclopentadienyltricarbonylrhenium substituted derivatives
作者:F Le Bideau、J Hénique、P Pigeon、J.-M Joerger、S Top、G Jaouen
DOI:10.1016/s0022-328x(02)02090-9
日期:2003.2
CpRe(CO)3 substituted derivatives were obtained in good yields (44–96%) from fulvenes and Re2(CO)10 in boiling mesitylene. This new methodology was applied to the synthesis of CpRe(CO)3 substituted steroids with success.
Bridged metallocenes of Group IVb metals provide improved results when the bridge comprises a neutral electron-donor substituent of general formula R'" Z R"".sub.j wherein R'" is a rigid unsaturated hydrocarbon radical between Z and the bridge, such that Z is separated from the bridge by 2 to 5 carbon atoms Z is nitrogen, phosphorus, oxygen or sulphur, R"" is H or an alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl having a maximum of 15 carbon atoms, each R"" being the same or different, j is 1 when Z=O or S and 2 when Z=N or P.
当桥接部分包含一个一般公式为R'" Z R"".sub.j的中性电子给体取代基时,IVb族金属的桥接茂金属提供了改进的结果,其中R'"是在Z和桥之间的刚性不饱和碳氢基团,使Z与桥之间相隔2至5个碳原子,Z是氮、磷、氧或硫,R""是H或最多具有15个碳原子的烷基、环烷基、芳基、烷基芳基或芳基烷基,每个R""相同或不同,当Z=O或S时,j为1,当Z=N或P时,j为2。
Nonalternant systems. 2. Electronic effects of substituents in 6-methyl-6-phenylfulvenes: carbon-13 NMR and theoretical studies
作者:D. J. Sardella、C. M. Keane、P. Lemonias
DOI:10.1021/ja00329a056
日期:1984.8
Kresze; Goetz, Chemische Berichte, 1957, vol. 90, p. 2161,2175