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Saline Intermolecular Pauson–Khand Reactions of Propargyl Amine
Author(s) -
Ji Yining,
Riera Antoni,
Verdaguer Xavier
Publication year - 2011
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201001617
Subject(s) - chemistry , counterion , propargyl , intermolecular force , norbornadiene , nucleophile , amine gas treating , stoichiometry , salt (chemistry) , medicinal chemistry , catalysis , polymer chemistry , organic chemistry , molecule , ion
Dicobalthexacarbonyl complexes of propargylammonium salts with non‐nucleophilic counterions BF 4 – and TfO – were successfully prepared in excellent yields. The X‐ray structure of complex 7a with a [CoCl 4 ] 2– counterion is reported. In contrast to the corresponding free base, the salt complexes readily underwent stoichiometric and catalytic cyclization with norbornadiene, providing, in some cases, enhanced reaction rates.