A New Entry in Catalytic Alkynylation of Aldehydes and Ketones: Dual Activation of Soft Nucleophiles and Hard Electrophiles by an Indium(III) Catalyst
摘要:
A new entry in catalytic alkynylation of carbonyl compounds was developed in which dual activation of both soft nucleophiles (terminal alkynes) and hard electrophiles (aldehydes and ketones) is achieved using an indium(III) catalyst. Preliminary mechanistic studies using in situ IR and NMR spectroscopic analysis are also discussed.
A new entry in catalytic alkynylation of carbonyl compounds was developed in which dual activation of both soft nucleophiles (terminal alkynes) and hard electrophiles (aldehydes and ketones) is achieved using an indium(III) catalyst. Preliminary mechanistic studies using in situ IR and NMR spectroscopic analysis are also discussed.
Cu-Catalyzed Oxidative C(sp<sup>2</sup>)–H Cycloetherification of <i>o</i>-Alkenyl Arenols for the Preparation of Fused Furans
1-(1H-inden-3-yl)naphthalen-2-ols. This intramolecular cycloetherification proceeds via C(sp2)–H oxygenation (C–H bond breaking and C–O bond forming), which enables the atom-economical synthesis of poly fused furans in high yields with large substrate diversity in the open air.