Successively Recycle Waste as Catalyst: A One-Pot Wittig/1,4-Reduction/Paal–Knorr Sequence for Modular Synthesis of Substituted Furans
摘要:
A one-pot tandem Wittig/conjugate reduction/PaalKnorr reaction is reported for the synthesis of di- or trisubstituted furans. This novel sequence first demonstrates the possibility of successively recycling waste from upstream steps to catalyze downstream reactions.
Successively Recycle Waste as Catalyst: A One-Pot Wittig/1,4-Reduction/Paal–Knorr Sequence for Modular Synthesis of Substituted Furans
摘要:
A one-pot tandem Wittig/conjugate reduction/PaalKnorr reaction is reported for the synthesis of di- or trisubstituted furans. This novel sequence first demonstrates the possibility of successively recycling waste from upstream steps to catalyze downstream reactions.
The reaction of hydroxylaminehydrochloride with differently substituted phenyldibenzoylethylene has been investigated. Both cyclicnitrone and 1,2-oxazine have been isolated and characterized by one- and two-dimensional NMR data and also by single crystal X-ray analysis. The reaction of hydroxylaminehydrochloride with differently subtituted phenyldibenzoylethylene has been investigated. Both cyclic