Transformations of Acylation Products of Functionally 4-Substituted 2-Alkyl(aryl)-5-hydrazino-1,3-oxazoles into 1,3,4-Oxadiazole Derivatives
✍ Scribed by A. V. Golovchenko; S. G. Pil’o; V. S. Brovarets; A. N. Chernega; B. S. Drach
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 90 KB
- Volume
- 75
- Category
- Article
- ISSN
- 1070-3632
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## Abstract Easily accessible N^2^‐acyl derivatives of 2‐aryl‐5‐hydrazino‐1,3‐oxazole‐4‐carbonitriles react peculiarly with the Lawesson reagent. In addition to thionation, the reaction involves a recyclization to afford new substituted 2‐(5‐amino‐1,3‐thiazol‐4‐yl)‐1,3,4‐thiadiazoles. Their structu
4 theoretics1 spprosch using a SCF Ci method has been used to analyse the Tt -T,, absorption spectrum of Z,Sdiphcnyl-1,3.4-oxadiazole. In its fist rriplct state in ;1 non-polarsolvent, thismoleculcis strongly non-plsnar\_This conclusion is corroborated by comparison of the fluorescence and phosphore