Carbon−Hydrogen and Carbon−Carbon Bond Activation of Cyclopropane by a Hydridotris(pyrazolyl)borate Rhodium Complex
Generation of the 16-electron fragment {[HB(3,5-dimethylpyrazolyl)3]Rh(CNCH2CMe3)} (Tp‘RhL) in the presence of cyclopropane results in C−H activation of the hydrocarbon. The cyclopropyl hydride complex rearranges in benzene solvent to the metallacyclobutane complex Thermolysis of the rhodacyclobutan...
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Published in | Organometallics Vol. 17; no. 20; pp. 4484 - 4492 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
American Chemical Society
28.09.1998
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Online Access | Get full text |
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Summary: | Generation of the 16-electron fragment {[HB(3,5-dimethylpyrazolyl)3]Rh(CNCH2CMe3)} (Tp‘RhL) in the presence of cyclopropane results in C−H activation of the hydrocarbon. The cyclopropyl hydride complex rearranges in benzene solvent to the metallacyclobutane complex Thermolysis of the rhodacyclobutane complex produces an η2-propylene complex. The related complex Tp‘Rh(CN-2,6-xylyl)(C2H4) has been structurally characterized and displays η3-Tp‘ coordination, both in the solid state and in solution. Thermolysis of the rhodacyclobutane complex in the presence of neopentyl isocyanide leads to insertion of isocyanide into both Rh−C bonds of the metallacycle. Cyclobutane undergoes C−H but not C−C bond cleavage. |
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Bibliography: | ark:/67375/TPS-JR83NS6G-Z istex:786D378EEDD6E4E61A53BDD88A6745F385FE908E |
ISSN: | 0276-7333 1520-6041 |
DOI: | 10.1021/om971066e |