Simple preparation of iron stabilized carboxonium ions. Concurrent complexation,rearrangement and alcohol addition to terminal acetylenes |
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| Authors: | Doris J Bates Myron Rosenblum Sari B Samuels |
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| Institution: | Department of Chemistry, Brandeis University, Waltham, MA 02254 U.S.A. |
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| Abstract: | CpFe(CO)2C(OEt)R]BF4 complexes can be prepared by reaction of CpFe(CO)2(isobutylene)BF4 with monoalkylated acetylenes in methylene chloride/ethanol solutions. Methyl propiolate yields methyl trans-2-ethoxy-acrylate, in a reaction catalytic in CpFe(CO)2(isobutylene)BF4, and internal acetylenes can be transformed to CpFe(CO)2(vinyl ether)BF4 complexes. |
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