Transition-metal-catalyzed radical-mediated four-component carbonylation reactions offer a sustainable and efficient strategy for modular synthesis of complex carbonyl compounds from simple feedstocks.However,current ...Transition-metal-catalyzed radical-mediated four-component carbonylation reactions offer a sustainable and efficient strategy for modular synthesis of complex carbonyl compounds from simple feedstocks.However,current studies have primarily focused on the alkylcarbonylation ofπ-bonds in unsaturated hydrocarbons,including alkenes,alkynes and 1,3-enynes.In this study,we report a nickel-catalyzed 1,3-alkylcarbonylation ofσ-bonds in bicyclo[1.1.0]butanes(BCBs)using CO as an economical carbonyl source.展开更多
The interpretation of heterometallic bonding nature is a basic work of inorganic chemistry.By means of intermetallic substitution of germylene anions with iron halide complexes CpFe(CO)_(2)I andβ-diketiminato Fe^Ⅱch...The interpretation of heterometallic bonding nature is a basic work of inorganic chemistry.By means of intermetallic substitution of germylene anions with iron halide complexes CpFe(CO)_(2)I andβ-diketiminato Fe^Ⅱchloride,the ferrogermylene complexes 3a,3b and 4a were synthesized and structurally characterized.The structural and IR characterizations show the presence of the Ge←Feπbackbonding in molecules 3a,3b and 4a.The computational works on frontier molecular orbitals and their comparison of energy states confirmed thatσdonation andπbackbonding are both weak in these molecules,despite three complexes have longer Ge-Fe bonds,whose strength decreases slightly with the degressive electron density around Fe environment in a sequence from 3a,3b to 4a.展开更多
基金support from the National Natural Science Foundation of China(No.22171220)the XJTU Research Fund for Al Science is greatly appreciated.
文摘Transition-metal-catalyzed radical-mediated four-component carbonylation reactions offer a sustainable and efficient strategy for modular synthesis of complex carbonyl compounds from simple feedstocks.However,current studies have primarily focused on the alkylcarbonylation ofπ-bonds in unsaturated hydrocarbons,including alkenes,alkynes and 1,3-enynes.In this study,we report a nickel-catalyzed 1,3-alkylcarbonylation ofσ-bonds in bicyclo[1.1.0]butanes(BCBs)using CO as an economical carbonyl source.
基金supported by National Science Foundation of China(No.22273072)the Shaanxi Provincial Enterprise Joint Fund(No.2021JLM-31)the Natural Science Basic Research Plan in Shaanxi Province of China(No.2021JM-311)。
文摘The interpretation of heterometallic bonding nature is a basic work of inorganic chemistry.By means of intermetallic substitution of germylene anions with iron halide complexes CpFe(CO)_(2)I andβ-diketiminato Fe^Ⅱchloride,the ferrogermylene complexes 3a,3b and 4a were synthesized and structurally characterized.The structural and IR characterizations show the presence of the Ge←Feπbackbonding in molecules 3a,3b and 4a.The computational works on frontier molecular orbitals and their comparison of energy states confirmed thatσdonation andπbackbonding are both weak in these molecules,despite three complexes have longer Ge-Fe bonds,whose strength decreases slightly with the degressive electron density around Fe environment in a sequence from 3a,3b to 4a.
