N-Heterocyclic phosphenium cations: syntheses and cycloaddition reactions

CA Caputo, JT Price, MC Jennings, R McDonald…

Index: Caputo, Christine A.; Price, Jacquelyn T.; Jennings, Michael C.; McDonald, Robert; Jones, Nathan D. Dalton Transactions, 2008 , # 26 p. 3461 - 3469

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Citation Number: 17

Abstract

A series of trifluoromethanesulfonate (OTf) salts of N-heterocyclic phospheniums (NHP) bearing phenyl (1a), para-methoxyphenyl (1b), 2, 6-diisopropylphenyl (1c) and mesityl (1d) substituents is reported. The compounds 1b–d are made by a modification to a literature procedure that improves the overall yields for 1c and 1d by 15 and 23%, respectively. Two unwanted side-products in the synthesis of 1d, the diammonium salt,[(2, 6-iPr-C6H3) N (H) ...