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2005
Furan derivatives
R 0060
Kishner's Reduction of 2-Furylhydrazone Gives 2-Methylene-2,3-dihydrofuran, a
Reactive Ene in the Ene Reaction. — Kishner's reduction of hydrazone (I)
34- 146 Highly
gives methylenedihydrofuran (II) as major abnormal reduction product. It smoothly undergoes ene reaction with diverse compounds. However, it does not react in the same
way with p-benzoquinone. In this case, the O-alkylated product (XIII) is formed which,
on further reaction with p-benzoquinone, affords an electron donor—acceptor complex. — (MILES*, W. H.; DETHOFF, E. A.; TUSON, H. H.; ULAS, G.; J. Org.
Chem. 70 (2005) 7, 2862-2865; Dep. Chem., Lafayette Coll., Easton, PA 18042, USA;
Eng.) — Jannicke
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