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Formation of substituted 1,3-dithiolanes in reactions of 3-amino-2-arylidene-1-thiones with diazomethane

✍ Scribed by N. A. Korchevin; V. A. Usov; M. G. Voronkov

Book ID
112326162
Publisher
Springer US
Year
1974
Tongue
English
Weight
91 KB
Volume
10
Category
Article
ISSN
0009-3122

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✍ Albert Lévai; Tamás Patonay 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 580 KB

## 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