3-Substituted Azulene-1-azo(4′-methylbenzenes). Preparation and Study of Spectral Characteristics.
✍ Scribed by Alexandru C. Razus; Liviu Birzan; Stefania Nae; Liliana Cristian; Filip Chiraleu; Maria Maganu; Valentin Cimpeanu; Laszlo Tarko
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 72 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract Ketene generated from acetyl chloride or chloroacetyl chloride adds on indolyl Schiff's base double bond to afford 1‐butyl‐3‐substituted‐4‐(2‐aryl‐1__H__‐indol‐3‐yl)‐2‐azetidinones in THF. The reaction proceeds stereospecifically via concerted __trans__ [2+2] cycloaddition. The synthesi
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