By E. O. Fischer (auth.), U. Schubert (eds.)
There are just few issues in organometallic chemistry, that have influenced study actions in as many parts, as transition-metal carbene (alkylidene) complexes. approximately 25 years after the 1st deliberate synthesis of a carbene advanced in E.O. Fischer's laboratory in Munich the NATO complicated examine Workshop on Transition-Metal Carbene Complexes was once the 1st assembly which,brought jointly scientists from assorted disciplines to debate inorganic, natural, theoretical structural catalysis-related elements of steel carbene chemistry. The seventieth birthday of Professor E.O. Fischer was once a very good get together for this firm. The organizers of the assembly (K.D. Dotz, Marburg; F.R. KreiBl, Munchen; U. Schubert, Wurzburg) have been inspired through the truth that lots of the major scientists during this sector have been capable of perform the workshop. The very excessive general of the contributions is mirrored during this ebook, which incorporates papers from the vast majority of the members. The court cases convey the state-of-the-art in steel carbene chemistry and should expectantly be a landmark within the improvement of this region of chemistry. beneficiant monetary aid for the workshop and for the guidance of this ebook used to be supplied by means of the medical Affairs department of NATO and a few businesses. The organizers additionally recognize the efforts of the employees of the Bildungs zentrum der Hans-Seidel-Stiftung in Wild undesirable Kreuth for making a friendly and stimulating surroundings in the course of the conference.
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Treatment of CH(OMe)2NMe2 with RNH(CH2l2NHR afforded either the electron-rich alkene +CNR(CH2)2NRt2 ([LR]2) or, alternatively. the isomer RN(CH2)2N:C-9(R')N(R)(CH2)2~R ([LR]'2), depending on the nature of the substituent R at nItrogen. In the case of R = CH2CH:CH2, the product was [LR]'2 (R = R'); whereas when R = (CH2)3PPh2, (CH2)2CH:CH2, or CH2CH:CHMe, the product was [L RJ2' An amino-Claisen-ty~e rearrangement was observed for [LR]2 (R = CH2CH:CHMe) ~ (1. J'2 [R' = R or CH(Me)CH:CH2]. MNDO SCF calculaUons on model compounds [LMe]2 and [LMe]'2 showed that the latter is appreciably the more stable.
L. Organornetallics 1988, in press. Miiller, E. Synthesis, 1974, 761. ; Johnson, J. unpublished results. ; Yamazaki, H. f. Organornet. Chern. 1977, 139, 169. ; Johnson, J. unpublished results. ; Pu, L. Manuscript submitted. N ,N' ,N" ,N'" -FUNCTI ONAL ISED ELECTRON-RICH ALKENES AND THEIR ROLE IN TRANSITION-METAL CHEMISTRY JOSE A. CHAMIZO and MICHAEL F. K. ABSTRACT. Treatment of CH(OMe)2NMe2 with RNH(CH2l2NHR afforded either the electron-rich alkene +CNR(CH2)2NRt2 ([LR]2) or, alternatively. the isomer RN(CH2)2N:C-9(R')N(R)(CH2)2~R ([LR]'2), depending on the nature of the substituent R at nItrogen.
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Advances in Metal Carbene Chemistry by E. O. Fischer (auth.), U. Schubert (eds.)