Chemoselective Activities of Fe(III) Catalysts in the Hydrofunctionalization of Allenes
摘要:
A range of tetrahydropyrans and piperidines were produced by Fe(III)-catalyzed intramolecular hydroalkoxylation and hydroamination reactions of allenes. Various Fe catalysts with different counterions were tested. Their activities toward allene and alkene activation depended sensitively on their counterion and reaction conditions. Mechanistic study of the reaction intermediates found a new reaction pattern involving the Fe catalysts and diene substrates.
Substitution reactions of 2-benzenesulphonyl cyclic ethers with carbon nucleophiles
作者:Dearg S. Brown、Maurizio Bruno、Raymond J. Davenport、Steven V. Ley
DOI:10.1016/s0040-4020(01)81323-5
日期:1989.1
Direct substitution of 2-benzenesulphonyl cyclic ethers was studied using a variety of carbon nucleophiles. These nucleophiles included organozinc reagents (derived from aryl, vinyl and alkynyl Grignard reagents) or silyl enolethers, silyl ketene acetals, allylsilanes and trimethylsilylcyanide in the presence of aluminum chloride. A general selectivity for the formation of the trans-product was observed
Chemoselective Activities of Fe(III) Catalysts in the Hydrofunctionalization of Allenes
作者:Min Seok Jung、Won Sun Kim、Ye Ho Shin、Ha Jeong Jin、Young Sam Kim、Eun Joo Kang
DOI:10.1021/ol303021d
日期:2012.12.21
A range of tetrahydropyrans and piperidines were produced by Fe(III)-catalyzed intramolecular hydroalkoxylation and hydroamination reactions of allenes. Various Fe catalysts with different counterions were tested. Their activities toward allene and alkene activation depended sensitively on their counterion and reaction conditions. Mechanistic study of the reaction intermediates found a new reaction pattern involving the Fe catalysts and diene substrates.