Article ID Journal Published Year Pages File Type
1314739 Journal of Fluorine Chemistry 2012 4 Pages PDF
Abstract

Two novel and simple approaches to N-triflyl guanidines are elaborated. Owing to very strong conjugation the formally double CN bond of TfNC(NHR)2 is longer than the formally single NC bonds. Energetic effect of the triflyl group on the conjugation in the NCN moiety is estimated to be ≥150 kcal/mol.

Graphical abstractTwo novel and simple approaches to N-triflyl guanidines are elaborated. The formally double CN bond in TfNC(NHHex-c)2 is longer than the formally single NC bonds.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► N-triflyl guanidines from triflamide and urea and from ► N-sulfinyltriflimide and carbodiimides. ► Strong conjugation in N-triflyl guanidines makes the formally double CN bond longer than the formally single bonds.

Related Topics
Physical Sciences and Engineering Chemistry Inorganic Chemistry
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