Metal-Assisted Cycloaddition Reactions in Organotransition Metal Chemistry

Abstract

Table 3. Metal-Assisted [2+1] Cycloaddition: Ethylidene Transfer to Olefins from 3b Using Complexes Cp(CO)2FeCH(OCH3)CH3 (1) 9 and Cp(CO)2FeCH(SPh)CH3 (2) 10 as Precursors

α,β-Unsaturated Fischer Carbene Complexes vs. 1,3-Dipoles: Reactions with Nitrones and Nitrilimines

“…[1] In this sense, α,β-unsaturated Fischer carbene complexes have been found to behave as good dienophiles and dipolarophiles in [4ϩ2] and [3ϩ2] cycloadditions. [2] Although many examples are known in which both alkenyl [3] and alkynyl [4] carbene complexes undergo [4ϩ2] cycloadditions, their reactivity towards 1,3-dipoles has been much less studied. The first reports in this field refer to the reaction of alkynyl Fischer carbene complexes with diazoderivatives.…”

Crystal structure of tricarbonyl(η2:2:1-1,2,3,11-tetramethyl-9-(2'-buten-2'- yl)tricyclo[5.3.1.04,10]undeca-2,5-dien-11-yl)manganese, C22H27MnO3

“…The photochemical reactions of transition metal complexes with olefinic ligands have been extensively studied [5][6][7][8].T he exact understanding of the bonding schemes of olefinic ligands in transition metal complexes is still in the focus of our interest [9][10][11][12][13][14]. The asymmetric unit of the title structure consists of one complete complex ( Fig.…”

Ultrasound assisted synthesis of 1-amino-3-ferrocenyl-3-oxoprop-1-enes

“…5,6 The ferrocene derivatives exhibit also an antiplasmodial, [7][8][9] antitumor, 10 and DNA cleaving 12 activities, have an antiproliferative effects on the MCF7 cell lines, 11 activity and have chemotherapeutic action on drugresistant cancer. 4,13 On the other hand, enaminones are important building blocks in the synthesis of many heterocyclic compounds 14 and many therapeutic: antitumor, 15 antimicrobial, [15][16][17] anticonvulsant, 18 antiinflammatory, 19 analgesic, 19 ulcerogenic agents.…”