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Cyclization in situ of enose-/ynose-nitrilimines: an expedient approach to the synthesis of chiral glycopyrazoles and pyrazolonucleosides

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Title Cyclization in situ of enose-/ynose-nitrilimines:
an expedient approach to the synthesis of chiral
glycopyrazoles and pyrazolonucleosides
 
Creator Roy, Ashim
Sahabuddin, Sk
Achari, Basudeb
Mandal, Sukhendu B
 
Subject Chemistry
 
Description Intramolecular [3C2] nitrilimine cycloaddition reactions on carbohydrate-derived substrates proceed in a regioselective fashion,
affording structurally novel chiral glycopyrazoles (4–6 and 10a–c) in good yields. The products can be subsequently transformed to bicyclic
pyrazoles (viz. 11 from 4) or nucleoside analogues (viz. 12 from 4).
 
Publisher Elsevier
 
Date 2005
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://www.eprints.iicb.res.in/588/1/TETRAHEDRON__61(_2)__365%2D371;2005[103].pdf
Roy, Ashim and Sahabuddin, Sk and Achari, Basudeb and Mandal, Sukhendu B (2005) Cyclization in situ of enose-/ynose-nitrilimines: an expedient approach to the synthesis of chiral glycopyrazoles and pyrazolonucleosides. Tetrahedron, 61 (2). pp. 365-371.
 
Relation http://dx.doi.org/10.1016/j.tet.2004.10.096
http://www.eprints.iicb.res.in/588/