Synthesis of multi-substituted pyrazoles utilizing the N-alkylated 3-hydroxy-3-propargyl- or allenylisoindolines

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N-Alkyl-substituted phthalimides (1) were easily converted to di-, tri-, and tetra-substituted pyrazoles (10) via a one-pot addition-decyclization-cyclocondensation process. Then, the structure and the position of N1-substitution of the 1,3-pyrazole ring were determined by X-Ray crystallographic analysis and (1)HnOe experiments.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2003-11
Language
English
Article Type
Article
Keywords

ALLENYL KETONES; CYCLIZATION

Citation

HETEROCYCLES, v.60, no.11, pp.2499 - 2510

ISSN
0385-5414
URI
http://hdl.handle.net/10203/81795
Appears in Collection
CH-Journal Papers(저널논문)
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