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1,3-Dipolar cycloadditions of new 2,5-bifunctionalized five-membered cyclic nitrones
A new family of five-membered cyclic nitrones bearing functional groups at positions 2 and 5 were tested in 1,3-cycloadditions with various dipolarophiles. These reactions gave the correspondingExpand
  • 9
A new and facile synthesis of methyl 3-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate
A four-step synthesis of methyl 3-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate from commercially available starting materials is presented.
  • 3
Cyclization of β-allenyloximes as a novel method for nitrone preparation
Two different procedures for β-allenyloxime cyclization are described. One leads to substituted 1-hydroxypyrrolidines and the other represents a new route to pyrroline-N-oxides.
  • 14
One-pot, three-component synthesis of five-membered cyclic nitrones by addition/cyclization/condensation domino reaction
A new approach to five-membered cyclic nitrones connected with the incorporation of a planar aromatic ring system into the structure is described. This procedure is based on an allenyloxime one-potExpand
  • 13
Allenyloxime-a new source of heterocyclizations to stable cyclic nitrones
A variety of conditions including reductive and/or basic reagents in aqueous or alcoholic solution was applied to 2,2-dimethylpenta-3,4-dienal oxime. Formation of various five-membered heterocyclesExpand
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Diverse chemical behaviour of 2-hydroxy-functionalized pyrroline-1-oxide
The reactivity of 2-hydroxy-3,3,5-trimethyl-3,4-dihydro-2H-pyrrole 1-oxide was investigated. The title compound showed unexpected reactivity with several different types of reagents.
  • 3
Novel Multicomponent Domino Approach to 2,5-Bifunctionalized Five-Membered Cyclic Nitrones
Multicomponent reaction of 2,2-dimethylpenta-3,4-dienal oxime was studied. Optimum reaction conditions leading to a new family of 5-membered cyclic nitrones were found. This reaction offers directExpand
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Allenyloxime - A New Versatile Precursor for the Synthesis of Heterocycles
We have developed a new methodology for synthesis of diverse heterocyclic compounds based on a simple starting material. Selected allenyloximes shoved high reactivity toward heterocyclizations whenExpand
New way to cyclic nitrones by cyclization of allenyloximes
Now we have found a new cyclization reaction of beta-allenyloxime (2) under mild conditions in boiling methanol leading to new five-membered heterocycles (3,4) [5]. When oxime (2) was treated withExpand