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ChemInform Abstract: Stereoselective Epoxidation of 2-Arylidene-1-indanones and 2-Arylidene- 1-benzosuberones.

✍ Scribed by W. ADAM; J. HALASZ; Z. JAMBOR; A. LEVAI; C. NEMES; T. PATONAY; G. TOTH

Book ID: 112039818
Publisher: John Wiley and Sons
Year: 2010
Weight: 30 KB
Volume: 27
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199645130

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## Abstract 1,3‐Dipolar cycloaddition of __E__‐2‐arylidene‐1‐indanones 1a‐h and Z‐aurones 3a‐c with diazomethane provided __trans__‐spiro‐1‐pyrazolines 2a‐h and 4a‐c, respectively, as sole products. However, the same cycloaddition of Z‐1‐thioaurones 5a‐f afforded a mixture of Z‐α‐methyl‐1‐thioauron