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Beilstein J. Org. Chem. 2016, 12, 2577–2587, doi:10.3762/bjoc.12.253
Graphical Abstract
Scheme 1: Prototypical Wittig reaction involving in situ phosphonium salt and phosphonium ylide formation.
Scheme 2: Bu3As-catalyzed Wittig-type reactions.
Scheme 3: Ph3As-catalyzed Wittig-type reactions using Fe(TCP)Cl and ethyl diazoacetate for arsonium ylide gen...
Figure 1: Recyclable polymer-supported arsine for catalytic Wittig-type reactions.
Scheme 4: Bu2Te-catalyzed Wittig-type reactions.
Scheme 5: Polymer-supported telluride catalyst cycling.
Scheme 6: Stable and odourless telluronium salt pre-catalyst for Wittig-type reactions.
Scheme 7: Phosphine-catalyzed Wittig reactions.
Figure 2: Various phosphine oxides used as pre-catalysts.
Scheme 8: Enantioselective catalytic Wittig reaction reported by Werner.
Scheme 9: Base-free catalytic Wittig reactions reported by Werner.
Scheme 10: Catalytic Wittig reactions reported by Lin.
Scheme 11: Catalytic Wittig reactions reported by Plietker.
Scheme 12: Prototypical aza-Wittig reaction involving in situ iminophosphorane formation.
Scheme 13: First catalytic aza-Wittig reaction reported by Campbell.
Scheme 14: Intramolecular catalytic aza-Wittig reactions reported by Marsden.
Scheme 15: Catalytic aza-Wittig reactions in 1,4-benzodiazepin-5-one synthesis.
Scheme 16: Catalytic aza-Wittig reactions in benzimidazole synthesis.
Scheme 17: Phosphine-catalyzed Staudinger and aza-Wittig reactions.
Scheme 18: Catalytic aza-Wittig reactions in 4(3H)-quinazolinone synthesis.
Scheme 19: Catalytic aza-Wittig reactions of in situ generated carboxylic acid anhydrides.
Scheme 20: Phosphine-catalyzed diaza-Wittig reactions.