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Org Lett. 2015 Mar 20;17(6):1557-60. doi: 10.1021/acs.orglett.5b00442. Epub 2015 Mar 2.

Successively recycle waste as catalyst: a one-pot Wittig/1,4-reduction/Paal-Knorr sequence for modular synthesis of substituted furans.

Author information

1
†Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.
2
‡Xinhua Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P. R. China.
3
§State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, Shanghai 200032, P. R. China.

Abstract

A one-pot tandem Wittig/conjugate reduction/Paal-Knorr 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.

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