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Imidazolinium salts substituted at the 2-position, which cannot form carbenes, have been employed as catalyzed for aza-Diels Alder reactions. In this case the salts are thought to act as Lewis acids
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in press (DOI: 10.1039/c003301d)
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Townsend has postulated a conjugate addition to an α,β- unsaturated acyl azolium in the biosynthesis of clavulanic acid, see ref 10.
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Townsend has postulated a conjugate addition to an α,β- unsaturated acyl azolium in the biosynthesis of clavulanic acid, see ref 10.
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46
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77954298967
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See the Supporting Information for the derivation of this rate law.
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See the Supporting Information for the derivation of this rate law.
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47
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