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Synthesis of 2-(pyridylazo)-2-furyl-and 2-(pyridylazo)-2-thienylmethines and other heterocyclic Schiff bases in the presence of molecular sieves

✍ Scribed by I. Iovel'; L. Golomba; Yu. Popelis; S. Grinberga; E. Lukevics

Book ID
105516693
Publisher
Springer US
Year
2000
Tongue
English
Weight
502 KB
Volume
36
Category
Article
ISSN
0009-3122

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Synthesis of 2-(2-, 3-, and 4-pyridyl)benzoxazoles by the reaction of phenolic schiff bases with thianthrene cation radical
✍ Myeong Soon Park; Koon Ha Park; Kun Jun; Seung Rim Shin; Sea Wha Oh πŸ“‚ Article πŸ“… 2002 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 36 KB

## Abstract 2‐(2‐, 3‐, and 4‐Pyridyl)benzoxazole derivatives were prepared in excellent yields by the oxidative cyclization of phenolic Schiff bases with thianthrene cation radical perchlorate in the presence of 2,6‐di‐__tert__‐butyl‐4‐methylpyridine.